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17” Tall Extension Kit

17” Tall Extension Kit

Add-on

Regular price $74.95
Regular price Sale price $74.95
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Color: Eucalyptus
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Enjoy gardening at ease with our 100-Day Sproutbox Garden Guarantee! If you're not satisfied in the first 100 days, send it back to us and we will issue you a full refund.

Why Gardeners Love the 17" Tall Extension Kit Add-on:

  • Expand Your Growing Space: Add an extra 1.5 feet to your 17” tall 9-in-1, L-shaped, or U-shaped garden beds, giving you more room to grow without the need for additional beds. Perfect for those who want to make the most of their garden setup.
  • Seamless Integration: Designed specifically for Sproutbox beds, this extension kit matches the durability and finish of your existing bed. It’s easy to install and blends in perfectly for a clean, cohesive look.
  • Everything You Need Included: Each kit comes with panels, bracing rods, stainless steel hardware, extra rubber edging, and an easy-to-follow instruction guide. All the essentials for a quick and hassle-free extension.
  • Built to Last: Made from corrosion-resistant Magnesium-Aluzinc Steel to match the quality of your garden bed, this extension kit is just as durable, holding up season after season.
See More + See Less -

Width: 3 inch
Length: 21 inch
Height: 18 inch
Weight: 8 Lbs

Add Postal Code and they will receive an estimated time of delivery.

Dimensions

FAQs

How many Extension Kits can I add to my garden bed?

The possibilities are almost endless when adding length to your garden. We've had customers create gardens well over 20 feet (we recommend not going beyond 3.5' in width, when extending the length of your garden).

View full details

Us vs. Them

Why thousands choose Sproutbox over ordinary garden beds.

Sproutbox Garden Raised Bed

Magnesium-Aluzinc Steel, 3–7x longer-lasting
Grow deeper roots with up to 32” beds designed for effortless gardening access.
Commercial-grade rubber trim, safe for kids
100% recyclable steel
Modular panel design
Up to 20 years of durability

Generic Raised Bed

Thin galvanized steel or wood prone to rust/rot
Limited depth means stunted roots and more back pain while tending.
Exposed sharp edges, no safety liner
Mixed throwaway material
Fixed-size boxes only
Typically 1–3 years before breaking down

Canada’s Longest-Lasting Metal Garden Beds

Excellent 4.9 | 1,500+ trusted reviews
Erin S. Erin S.
Verified Purchase

I’ve gardened for over 30 years and never had such an abundant harvest. I couldn’t be happier with my new beds! The 17” depth is easy to work, keeps the rabbits out, and ensures deep roots and easy watering.

Val A. Val A.
Verified Purchase

They are very sturdy, easy to put together with simple instructions and great packaging. They're also made with very high quality materials.

Clara N. Clara N.
Verified Purchase

We installed 3 sprout boxes in the 17 inch rectangular configuration. They are full of beautiful top soil and are seeded with winter greens in our new greenhouse. They are sleek and will work great through the Seasons in the greenhouse.

Cheryl L. Cheryl L.
Verified Purchase

Love them, just the right height to work at an added bonus, the rabbits can’t reach the veggies! Plan to add a few more this fall.

Read all reviews

Rebuild or expand anytime your layout, your rules.

Why Gardeners Choose Sproutbox Beds.

Practical benefits that make every season easier, safer, and more productive.

Modular

Modular

Each garden kit comes with multiple panels for complete autonomy of your dream garden set-up. The modular design gives you endless configurations when buying multiple sets.

Longevity

Longevity

The thick (0.6mm) specially coated steel is what sets us apart. Your garden kit is designed to last 3-7x longer than regular galvanized steel and has a lifespan up to 20 years.

Safe for kids

Safe for kids

Commercial grade rubber lines the top of the garden providing a comfortable place to rest arms and hands on, while also making it safe for kids.

Sustainable

Sustainable

The steel is 100% recyclable and made using a green manufacturing process.

Safe for Veggies

Safe for Veggies

Our specially designed steel provides safe gardening for all your vegetables. With typical soil acidity levels hovering around neutral, there should be no concern with leaching metals into your soil.

Comfortable Roots

Comfortable Roots

Take control of your soil health with up to 32” of fresh fertile earth. The generous depth provides ample room for strong roots and healthy plants.

Customer Reviews

Overall rating: 4.9 / 5 from 76 reviews.

I am very grateful for the size exchange. Thanks to Susan, my garden looks perfect and beautiful the way I wanted it.

17” Tall Extension Kit

Store owner replied: It was our pleasure to help you. Happy growing! - The Sproutbox team.

We are happy to have added another Sproutbox to our garden

17” Tall Extension Kit

Store owner replied: Thank you for growing with us!- The Sproutbox garden team.

Customer photo review of 17” Tall Extension Kit

Great !!!😃❤️

17” Tall Extension Kit

Store owner replied: Thanks for the wonderful review! – The Sproutbox Garden Team

Love Sproutbox. The extension kit is great.

17” Tall Extension Kit

Store owner replied: Thanks for the 5 stars! – The Sproutbox Garden Team

The boxes are great! Set up was easy and they are beautiful and the perfect size with the extension kits. Thank you so much for making such a great Canadian product!

17” Tall Extension Kit

Store owner replied: We truly appreciate your support. – The Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

Beautiful beds and the extension kit is well worth it for the grow space you gain

17” Tall Extension Kit

Store owner replied: Thanks so much for your review! – The Sproutbox Garden Team

I am loving my new raised garden beds. So easy to water and weed. Things are growing very well already. Can't wait to see the harvest!

17” Tall Extension Kit

Store owner replied: We truly appreciate your feedback and support. Happy growing! – The Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

As you can see, a work in progress! My sister and I put it together. Took a bit longer than your suggested 40 minutes - but hey, my sister is 76 years and I am 83! So we did good. And still friends! It is perfect for me, will send more pictures as I go along. Thank you.

17” Tall Extension Kit

Store owner replied: It’s customers like you that make what we do so rewarding—thank you! – The Sproutbox Garden Team

A great addition to the garden bed system we already love. The modular design made it easy to customize the layout, and the extension integrated seamlessly with our existing beds. High-quality construction and a smart, flexible solution for expanding our garden this season! :)

17” Tall Extension Kit

Store owner replied: We appreciate you taking the time to leave a review! – The Sproutbox Garden Team

NEAT & TIDY ADDDITION TO A SMALL BACKYARD

17” Tall Extension Kit

Store owner replied: So glad you’re enjoying it! – The Sproutbox Garden Team

Easy to put together by our students. We are looking forward to our first growing season with our new Sproutboxes.

17” Tall Extension Kit

Store owner replied: Your review made our day—thanks for your trust and support! – The Sproutbox Garden Team

I purchased two 9 in 1's and realized that they needed to be slightly longer to fit in the space I have placed them. They were simple to add and I am very happy with how they look.

17” Tall Extension Kit

Store owner replied: Thank you for growing with us! We’re excited to be part of your gardening journey. -Sproutbox Garden Team

I had not yet assembled my 17" 9 in 1 kit so it was very easy to add the expansion kit when I assembled the two together. I think it would be a bit difficult to add an expansion kit once the main bed is already assembled of course depending on the location. Mine are on a grass space that I dug out to allow for the slope of my property so adding an expansion kit would be quite an undertaking to change everything. Overall, though, I'm very glad that I purchased the expansion kit before the main bed was assembled.

17” Tall Extension Kit

Store owner replied: Thank you for the review!- The Sproutbox Team.

Customer video review of 17” Tall Extension Kit

I puchased 2 X 9 in 1, 17 inches tall Sproutbox with 2 Extension kits. They are easy to assemble, they should give me good results.

17” Tall Extension Kit

Store owner replied: Thank you for your review and the great video!- The Sproutbox Team.

Customer video review of 17” Tall Extension Kit

We've added two 2x10 planters for our strawberries replacing the rotten wooden ones. A new addition to our existing Sproutboxes. ...Erik

17” Tall Extension Kit

Store owner replied: Thank you for the review and the video, your garden is stunning!- The Sproutbox Team.

Customer photo review of 17” Tall Extension Kit

We purchased the 17" 9-in-one kit with the extension pieces. Very impressed with how easy it was to assemble, and how sturdy it is. We are using it to replace an older bed that we had built from boards, which had begun to fall apart. We're confident the Sproutbox bed will remain in good shape well into the future, and expect to replace the rest our existing beds with them over time. Thanks for the great solution!

17” Tall Extension Kit

Store owner replied: We’re so glad you’re happy with your Sproutbox. Thanks for sharing! –Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

Great project putting together these Sprout Boxes. They are sturdy and are a great improvement in our garden

17” Tall Extension Kit

Store owner replied: Thank you for the great review and the video. Say hello to Lucy! We look forward to growing with you and would love to see updated photos of your Sproutbox's thriving.- The Sproutbox Team.

Love the everything I have ordered from Sproutbox. Easy assembly and look great!

17” Tall Extension Kit

Store owner replied: Thanks for growing with us and for the fantastic review! –Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Easy to take apart and add one more piece to make wider. Great design and easy to install!

17” Tall Extension Kit

Store owner replied: We're so grateful for your review. Wishing you lots of garden joy! – The Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Absolutely love my new beds. They arrived on time; easy to assemble; extremely durable and look amazing. Next step — plant and enjoy harvest.

17” Tall Extension Kit

Store owner replied: Thank you so much for your kind words and the photos! We’re thrilled you love your new beds!- The Sproutbox team🌱

Customer video review of 17” Tall Extension Kit

LOVE my sproutboxes! Won't buy anything else for my garden now.

17” Tall Extension Kit

Store owner replied: Thank you for the video! We are so happy you love your sproutboxes! 🌱💚 —thanks for growing with us!

Love the product. This time we added a couple more 9 in 1s and expanded their width either double or triple plus doubled a couple of others we had got last year. This has effectively doubled the capacity (we previously had six nine in ones) of the entire garden. Soil is now in place and planting has commenced.

17” Tall Extension Kit

Customer video review of 17” Tall Extension Kit

Great experience start to finish. Sproutbox staff were so helpful helping me configure what I needed to order for my 9.5 foot x 5 foot box. Setting up couldn’t have been easier and now I’m ready to get growing! Thanks Sproutbox, Jane

17” Tall Extension Kit

Store owner replied: We appreciate your thoughtful review and amazing video! Thank you for growing with us! -Sproutbox Garden Team

Easy to install

17” Tall Extension Kit

Store owner replied: This is great to hear! Thank you for the 5 star review! -Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

My install in progress! I bought 2 Modular 9 in 1 kits, plus 2 sets of round ends, and the extension kit so now I have: One 8 x 2' One 6.5 x 2' One 5 x 2' One 3.5 x 2' SproutBox were marvellous in sorting out an error in shipping, customer service second to none, and very high quality planters.

17” Tall Extension Kit

Store owner replied: Thanks so much—your setup sounds amazing! 🌱 Glad we could help, and we’d love to see it once planted! 🌿

Customer photo review of 17” Tall Extension Kit

I love my garden beds. They are very solid, easy to set up and unlike my old wooden beds will not deteriorate.

17” Tall Extension Kit

Store owner replied: We appreciate your support! Enjoy every moment in your garden. –Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

The garden boxes are all set for next year’s plantings! Tidies things up nicely!

17” Tall Extension Kit

Store owner replied: Your garden looks so good! Thank you so much for sharing! -Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

I have 3 garden beds to replace. I thought about going back to wood but once I started ripping out the old beds I had to give my head a shake. Carpenter ants, rot and the expense of wood stopped me from going that route. I researched Sproutbox Garden and I have no regrets. Great product with a modern look.

17” Tall Extension Kit

Store owner replied: We couldn't agree more! Thank you for the 5 star review! -Sproutbox Garden Team

Love the garden boxes. I will send pics to social media!

17” Tall Extension Kit

Customer photo review of 17” Tall Extension Kit

Love these boxes. Easy to assemble and move into place. Tons of info on website to help you fill them. Have 7 boxes filled with potatoes, onions, beets and lettuce.

17” Tall Extension Kit

Store owner replied: Beautiful gardens Darren! All the best with your harvest this season and many years to come. -Sproutbox Garden Team

Easy to assemble, looks great and should be maintenance free for many years. My client loves it!

17” Tall Extension Kit

Store owner replied: We appreciate your kind review—thank you for choosing Sproutbox Garden beds! -Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

My garden bed was a cinch to put together. The extension kit has all the support rods you would need depending on the bed size you chose. Great quality and looks great too!

17” Tall Extension Kit

Store owner replied: We love hearing this! Thanks for taking the time to leave a review. –Sproutbox Garden Team

i love the sprout box it is high enough that the feral cats can not get in and mess up what i planted. i have one box with plants in front of my greenhouse and they are growing very well. There will be a 2nd box going up this week as soon as some construction happens on the house near where the new box will be. That way i can keep herbs and veg going till late fall with a cover , and it is much easier to weed than ground level. Danella Hesler

17” Tall Extension Kit

Customer photo review of 17” Tall Extension Kit

Excellent customer service

17” Tall Extension Kit

Store owner replied: We’re so happy to hear this! Thank you for your support. – Sproutbox Garden Team

Easy to put together

17” Tall Extension Kit

Store owner replied: Thank you for the review! - Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Sproutbox was relatively easy to put together and I received several comments from friends and neighbors on how nice they look. Trying them out this first year, most likely to add another box or 2 next year.

17” Tall Extension Kit

Seems to be working out well so far. They are nice looking and was straightforward to assemble

17” Tall Extension Kit

Frequently Asked Questions

Didn't find your answer?

We're here to help!

Contact Us View All

What are Sproutbox Garden raised metal beds made from?

All our raised beds are made of the top rated steel for gardens, Aluzinc- Magnesium Steel.

Our steel is Japanese designed and made for adverse and extreme conditions. Our thick (0.6mm) corrugated steel with specialized exterior coating makes it the best choice on the market for garden applications. Superior to galvanized and aluzinc steel in regards to corrosion, durability, and lifetime.

What makes Sproutbox Garden the ultimate choice for raised garden beds?

Sproutbox Garden stands out with its unbeatable combination of longevity, versatility, and safety. Our specially coated steel beds are industry-leading in strength and durability, ensuring your garden thrives for years. Our modular design allows for endless creativity, and with child and pet-friendly rounded corners and rubber edging, everyone can safely enjoy the garden.

What is the best raised garden bed?

When considering a brand or type of raised garden bed, three words are at the top of everyone's list. Longevity, versatility, and safety.
Sproutbox Garden specializes in all three of these categories.
We make our raised beds out of Aluzinc-Magnesium Steel, which is leading the industry in strength and durability.
Our modular design provides autonomy and flexibility in the building process.
Sproutbox products are safe for kids and pets with their rounded corners and commercial grade rubber edging that lines the top of each bed. Moreover, our specially designed Steel is safe for veggies, with no concern of metal leaching into the soil.

Why should I choose raised bed gardening if I’m in Canada?

Raised bed gardening empowers you to control your garden's growing conditions, like soil type and fertilizers, ensuring optimal growth for your favourite fruits and vegetables. Plus, it's a fulfilling hobby that lets you enjoy the great outdoors and savour the pride of harvesting fresh produce straight from your garden.

Is it safe to grow vegetables in Steel raised garden beds?

Absolutely! Our specially designed Steel is safe for gardening as it requires acidity to break down the zinc coating, which is minimal in neutral garden soils. Additionally, zinc is an essential plant nutrient and a natural part of the soil.

Didn't find your answer?

We're here to help!

Contact Us View All

Customer Reviews

Overall rating: 4.9 / 5 from 76 reviews.

I am very grateful for the size exchange. Thanks to Susan, my garden looks perfect and beautiful the way I wanted it.

17” Tall Extension Kit

Store owner replied: It was our pleasure to help you. Happy growing! - The Sproutbox team.

We are happy to have added another Sproutbox to our garden

17” Tall Extension Kit

Store owner replied: Thank you for growing with us!- The Sproutbox garden team.

Customer photo review of 17” Tall Extension Kit

Great !!!😃❤️

17” Tall Extension Kit

Store owner replied: Thanks for the wonderful review! – The Sproutbox Garden Team

Love Sproutbox. The extension kit is great.

17” Tall Extension Kit

Store owner replied: Thanks for the 5 stars! – The Sproutbox Garden Team

The boxes are great! Set up was easy and they are beautiful and the perfect size with the extension kits. Thank you so much for making such a great Canadian product!

17” Tall Extension Kit

Store owner replied: We truly appreciate your support. – The Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

Beautiful beds and the extension kit is well worth it for the grow space you gain

17” Tall Extension Kit

Store owner replied: Thanks so much for your review! – The Sproutbox Garden Team

I am loving my new raised garden beds. So easy to water and weed. Things are growing very well already. Can't wait to see the harvest!

17” Tall Extension Kit

Store owner replied: We truly appreciate your feedback and support. Happy growing! – The Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

As you can see, a work in progress! My sister and I put it together. Took a bit longer than your suggested 40 minutes - but hey, my sister is 76 years and I am 83! So we did good. And still friends! It is perfect for me, will send more pictures as I go along. Thank you.

17” Tall Extension Kit

Store owner replied: It’s customers like you that make what we do so rewarding—thank you! – The Sproutbox Garden Team

A great addition to the garden bed system we already love. The modular design made it easy to customize the layout, and the extension integrated seamlessly with our existing beds. High-quality construction and a smart, flexible solution for expanding our garden this season! :)

17” Tall Extension Kit

Store owner replied: We appreciate you taking the time to leave a review! – The Sproutbox Garden Team

NEAT & TIDY ADDDITION TO A SMALL BACKYARD

17” Tall Extension Kit

Store owner replied: So glad you’re enjoying it! – The Sproutbox Garden Team

Easy to put together by our students. We are looking forward to our first growing season with our new Sproutboxes.

17” Tall Extension Kit

Store owner replied: Your review made our day—thanks for your trust and support! – The Sproutbox Garden Team

I purchased two 9 in 1's and realized that they needed to be slightly longer to fit in the space I have placed them. They were simple to add and I am very happy with how they look.

17” Tall Extension Kit

Store owner replied: Thank you for growing with us! We’re excited to be part of your gardening journey. -Sproutbox Garden Team

I had not yet assembled my 17" 9 in 1 kit so it was very easy to add the expansion kit when I assembled the two together. I think it would be a bit difficult to add an expansion kit once the main bed is already assembled of course depending on the location. Mine are on a grass space that I dug out to allow for the slope of my property so adding an expansion kit would be quite an undertaking to change everything. Overall, though, I'm very glad that I purchased the expansion kit before the main bed was assembled.

17” Tall Extension Kit

Store owner replied: Thank you for the review!- The Sproutbox Team.

Customer video review of 17” Tall Extension Kit

I puchased 2 X 9 in 1, 17 inches tall Sproutbox with 2 Extension kits. They are easy to assemble, they should give me good results.

17” Tall Extension Kit

Store owner replied: Thank you for your review and the great video!- The Sproutbox Team.

Customer video review of 17” Tall Extension Kit

We've added two 2x10 planters for our strawberries replacing the rotten wooden ones. A new addition to our existing Sproutboxes. ...Erik

17” Tall Extension Kit

Store owner replied: Thank you for the review and the video, your garden is stunning!- The Sproutbox Team.

Customer photo review of 17” Tall Extension Kit

We purchased the 17" 9-in-one kit with the extension pieces. Very impressed with how easy it was to assemble, and how sturdy it is. We are using it to replace an older bed that we had built from boards, which had begun to fall apart. We're confident the Sproutbox bed will remain in good shape well into the future, and expect to replace the rest our existing beds with them over time. Thanks for the great solution!

17” Tall Extension Kit

Store owner replied: We’re so glad you’re happy with your Sproutbox. Thanks for sharing! –Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

Great project putting together these Sprout Boxes. They are sturdy and are a great improvement in our garden

17” Tall Extension Kit

Store owner replied: Thank you for the great review and the video. Say hello to Lucy! We look forward to growing with you and would love to see updated photos of your Sproutbox's thriving.- The Sproutbox Team.

Love the everything I have ordered from Sproutbox. Easy assembly and look great!

17” Tall Extension Kit

Store owner replied: Thanks for growing with us and for the fantastic review! –Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Easy to take apart and add one more piece to make wider. Great design and easy to install!

17” Tall Extension Kit

Store owner replied: We're so grateful for your review. Wishing you lots of garden joy! – The Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Absolutely love my new beds. They arrived on time; easy to assemble; extremely durable and look amazing. Next step — plant and enjoy harvest.

17” Tall Extension Kit

Store owner replied: Thank you so much for your kind words and the photos! We’re thrilled you love your new beds!- The Sproutbox team🌱

Customer video review of 17” Tall Extension Kit

LOVE my sproutboxes! Won't buy anything else for my garden now.

17” Tall Extension Kit

Store owner replied: Thank you for the video! We are so happy you love your sproutboxes! 🌱💚 —thanks for growing with us!

Love the product. This time we added a couple more 9 in 1s and expanded their width either double or triple plus doubled a couple of others we had got last year. This has effectively doubled the capacity (we previously had six nine in ones) of the entire garden. Soil is now in place and planting has commenced.

17” Tall Extension Kit

Customer video review of 17” Tall Extension Kit

Great experience start to finish. Sproutbox staff were so helpful helping me configure what I needed to order for my 9.5 foot x 5 foot box. Setting up couldn’t have been easier and now I’m ready to get growing! Thanks Sproutbox, Jane

17” Tall Extension Kit

Store owner replied: We appreciate your thoughtful review and amazing video! Thank you for growing with us! -Sproutbox Garden Team

Easy to install

17” Tall Extension Kit

Store owner replied: This is great to hear! Thank you for the 5 star review! -Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

My install in progress! I bought 2 Modular 9 in 1 kits, plus 2 sets of round ends, and the extension kit so now I have: One 8 x 2' One 6.5 x 2' One 5 x 2' One 3.5 x 2' SproutBox were marvellous in sorting out an error in shipping, customer service second to none, and very high quality planters.

17” Tall Extension Kit

Store owner replied: Thanks so much—your setup sounds amazing! 🌱 Glad we could help, and we’d love to see it once planted! 🌿

Customer photo review of 17” Tall Extension Kit

I love my garden beds. They are very solid, easy to set up and unlike my old wooden beds will not deteriorate.

17” Tall Extension Kit

Store owner replied: We appreciate your support! Enjoy every moment in your garden. –Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

The garden boxes are all set for next year’s plantings! Tidies things up nicely!

17” Tall Extension Kit

Store owner replied: Your garden looks so good! Thank you so much for sharing! -Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

I have 3 garden beds to replace. I thought about going back to wood but once I started ripping out the old beds I had to give my head a shake. Carpenter ants, rot and the expense of wood stopped me from going that route. I researched Sproutbox Garden and I have no regrets. Great product with a modern look.

17” Tall Extension Kit

Store owner replied: We couldn't agree more! Thank you for the 5 star review! -Sproutbox Garden Team

Love the garden boxes. I will send pics to social media!

17” Tall Extension Kit

Customer photo review of 17” Tall Extension Kit

Love these boxes. Easy to assemble and move into place. Tons of info on website to help you fill them. Have 7 boxes filled with potatoes, onions, beets and lettuce.

17” Tall Extension Kit

Store owner replied: Beautiful gardens Darren! All the best with your harvest this season and many years to come. -Sproutbox Garden Team

Easy to assemble, looks great and should be maintenance free for many years. My client loves it!

17” Tall Extension Kit

Store owner replied: We appreciate your kind review—thank you for choosing Sproutbox Garden beds! -Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

My garden bed was a cinch to put together. The extension kit has all the support rods you would need depending on the bed size you chose. Great quality and looks great too!

17” Tall Extension Kit

Store owner replied: We love hearing this! Thanks for taking the time to leave a review. –Sproutbox Garden Team

i love the sprout box it is high enough that the feral cats can not get in and mess up what i planted. i have one box with plants in front of my greenhouse and they are growing very well. There will be a 2nd box going up this week as soon as some construction happens on the house near where the new box will be. That way i can keep herbs and veg going till late fall with a cover , and it is much easier to weed than ground level. Danella Hesler

17” Tall Extension Kit

Customer photo review of 17” Tall Extension Kit

Excellent customer service

17” Tall Extension Kit

Store owner replied: We’re so happy to hear this! Thank you for your support. – Sproutbox Garden Team

Easy to put together

17” Tall Extension Kit

Store owner replied: Thank you for the review! - Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Sproutbox was relatively easy to put together and I received several comments from friends and neighbors on how nice they look. Trying them out this first year, most likely to add another box or 2 next year.

17” Tall Extension Kit

Seems to be working out well so far. They are nice looking and was straightforward to assemble

17” Tall Extension Kit

Customer Reviews

Overall rating: 4.9 / 5 from 76 reviews.

I am very grateful for the size exchange. Thanks to Susan, my garden looks perfect and beautiful the way I wanted it.

17” Tall Extension Kit

Store owner replied: It was our pleasure to help you. Happy growing! - The Sproutbox team.

We are happy to have added another Sproutbox to our garden

17” Tall Extension Kit

Store owner replied: Thank you for growing with us!- The Sproutbox garden team.

Customer photo review of 17” Tall Extension Kit

Great !!!😃❤️

17” Tall Extension Kit

Store owner replied: Thanks for the wonderful review! – The Sproutbox Garden Team

Love Sproutbox. The extension kit is great.

17” Tall Extension Kit

Store owner replied: Thanks for the 5 stars! – The Sproutbox Garden Team

The boxes are great! Set up was easy and they are beautiful and the perfect size with the extension kits. Thank you so much for making such a great Canadian product!

17” Tall Extension Kit

Store owner replied: We truly appreciate your support. – The Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

Beautiful beds and the extension kit is well worth it for the grow space you gain

17” Tall Extension Kit

Store owner replied: Thanks so much for your review! – The Sproutbox Garden Team

I am loving my new raised garden beds. So easy to water and weed. Things are growing very well already. Can't wait to see the harvest!

17” Tall Extension Kit

Store owner replied: We truly appreciate your feedback and support. Happy growing! – The Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

As you can see, a work in progress! My sister and I put it together. Took a bit longer than your suggested 40 minutes - but hey, my sister is 76 years and I am 83! So we did good. And still friends! It is perfect for me, will send more pictures as I go along. Thank you.

17” Tall Extension Kit

Store owner replied: It’s customers like you that make what we do so rewarding—thank you! – The Sproutbox Garden Team

A great addition to the garden bed system we already love. The modular design made it easy to customize the layout, and the extension integrated seamlessly with our existing beds. High-quality construction and a smart, flexible solution for expanding our garden this season! :)

17” Tall Extension Kit

Store owner replied: We appreciate you taking the time to leave a review! – The Sproutbox Garden Team

NEAT & TIDY ADDDITION TO A SMALL BACKYARD

17” Tall Extension Kit

Store owner replied: So glad you’re enjoying it! – The Sproutbox Garden Team

Easy to put together by our students. We are looking forward to our first growing season with our new Sproutboxes.

17” Tall Extension Kit

Store owner replied: Your review made our day—thanks for your trust and support! – The Sproutbox Garden Team

I purchased two 9 in 1's and realized that they needed to be slightly longer to fit in the space I have placed them. They were simple to add and I am very happy with how they look.

17” Tall Extension Kit

Store owner replied: Thank you for growing with us! We’re excited to be part of your gardening journey. -Sproutbox Garden Team

I had not yet assembled my 17" 9 in 1 kit so it was very easy to add the expansion kit when I assembled the two together. I think it would be a bit difficult to add an expansion kit once the main bed is already assembled of course depending on the location. Mine are on a grass space that I dug out to allow for the slope of my property so adding an expansion kit would be quite an undertaking to change everything. Overall, though, I'm very glad that I purchased the expansion kit before the main bed was assembled.

17” Tall Extension Kit

Store owner replied: Thank you for the review!- The Sproutbox Team.

Customer video review of 17” Tall Extension Kit

I puchased 2 X 9 in 1, 17 inches tall Sproutbox with 2 Extension kits. They are easy to assemble, they should give me good results.

17” Tall Extension Kit

Store owner replied: Thank you for your review and the great video!- The Sproutbox Team.

Customer video review of 17” Tall Extension Kit

We've added two 2x10 planters for our strawberries replacing the rotten wooden ones. A new addition to our existing Sproutboxes. ...Erik

17” Tall Extension Kit

Store owner replied: Thank you for the review and the video, your garden is stunning!- The Sproutbox Team.

Customer photo review of 17” Tall Extension Kit

We purchased the 17" 9-in-one kit with the extension pieces. Very impressed with how easy it was to assemble, and how sturdy it is. We are using it to replace an older bed that we had built from boards, which had begun to fall apart. We're confident the Sproutbox bed will remain in good shape well into the future, and expect to replace the rest our existing beds with them over time. Thanks for the great solution!

17” Tall Extension Kit

Store owner replied: We’re so glad you’re happy with your Sproutbox. Thanks for sharing! –Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

Great project putting together these Sprout Boxes. They are sturdy and are a great improvement in our garden

17” Tall Extension Kit

Store owner replied: Thank you for the great review and the video. Say hello to Lucy! We look forward to growing with you and would love to see updated photos of your Sproutbox's thriving.- The Sproutbox Team.

Love the everything I have ordered from Sproutbox. Easy assembly and look great!

17” Tall Extension Kit

Store owner replied: Thanks for growing with us and for the fantastic review! –Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Easy to take apart and add one more piece to make wider. Great design and easy to install!

17” Tall Extension Kit

Store owner replied: We're so grateful for your review. Wishing you lots of garden joy! – The Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Absolutely love my new beds. They arrived on time; easy to assemble; extremely durable and look amazing. Next step — plant and enjoy harvest.

17” Tall Extension Kit

Store owner replied: Thank you so much for your kind words and the photos! We’re thrilled you love your new beds!- The Sproutbox team🌱

Customer video review of 17” Tall Extension Kit

LOVE my sproutboxes! Won't buy anything else for my garden now.

17” Tall Extension Kit

Store owner replied: Thank you for the video! We are so happy you love your sproutboxes! 🌱💚 —thanks for growing with us!

Love the product. This time we added a couple more 9 in 1s and expanded their width either double or triple plus doubled a couple of others we had got last year. This has effectively doubled the capacity (we previously had six nine in ones) of the entire garden. Soil is now in place and planting has commenced.

17” Tall Extension Kit

Customer video review of 17” Tall Extension Kit

Great experience start to finish. Sproutbox staff were so helpful helping me configure what I needed to order for my 9.5 foot x 5 foot box. Setting up couldn’t have been easier and now I’m ready to get growing! Thanks Sproutbox, Jane

17” Tall Extension Kit

Store owner replied: We appreciate your thoughtful review and amazing video! Thank you for growing with us! -Sproutbox Garden Team

Easy to install

17” Tall Extension Kit

Store owner replied: This is great to hear! Thank you for the 5 star review! -Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

My install in progress! I bought 2 Modular 9 in 1 kits, plus 2 sets of round ends, and the extension kit so now I have: One 8 x 2' One 6.5 x 2' One 5 x 2' One 3.5 x 2' SproutBox were marvellous in sorting out an error in shipping, customer service second to none, and very high quality planters.

17” Tall Extension Kit

Store owner replied: Thanks so much—your setup sounds amazing! 🌱 Glad we could help, and we’d love to see it once planted! 🌿

Customer photo review of 17” Tall Extension Kit

I love my garden beds. They are very solid, easy to set up and unlike my old wooden beds will not deteriorate.

17” Tall Extension Kit

Store owner replied: We appreciate your support! Enjoy every moment in your garden. –Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

The garden boxes are all set for next year’s plantings! Tidies things up nicely!

17” Tall Extension Kit

Store owner replied: Your garden looks so good! Thank you so much for sharing! -Sproutbox Garden Team

Customer video review of 17” Tall Extension Kit

I have 3 garden beds to replace. I thought about going back to wood but once I started ripping out the old beds I had to give my head a shake. Carpenter ants, rot and the expense of wood stopped me from going that route. I researched Sproutbox Garden and I have no regrets. Great product with a modern look.

17” Tall Extension Kit

Store owner replied: We couldn't agree more! Thank you for the 5 star review! -Sproutbox Garden Team

Love the garden boxes. I will send pics to social media!

17” Tall Extension Kit

Customer photo review of 17” Tall Extension Kit

Love these boxes. Easy to assemble and move into place. Tons of info on website to help you fill them. Have 7 boxes filled with potatoes, onions, beets and lettuce.

17” Tall Extension Kit

Store owner replied: Beautiful gardens Darren! All the best with your harvest this season and many years to come. -Sproutbox Garden Team

Easy to assemble, looks great and should be maintenance free for many years. My client loves it!

17” Tall Extension Kit

Store owner replied: We appreciate your kind review—thank you for choosing Sproutbox Garden beds! -Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

My garden bed was a cinch to put together. The extension kit has all the support rods you would need depending on the bed size you chose. Great quality and looks great too!

17” Tall Extension Kit

Store owner replied: We love hearing this! Thanks for taking the time to leave a review. –Sproutbox Garden Team

i love the sprout box it is high enough that the feral cats can not get in and mess up what i planted. i have one box with plants in front of my greenhouse and they are growing very well. There will be a 2nd box going up this week as soon as some construction happens on the house near where the new box will be. That way i can keep herbs and veg going till late fall with a cover , and it is much easier to weed than ground level. Danella Hesler

17” Tall Extension Kit

Customer photo review of 17” Tall Extension Kit

Excellent customer service

17” Tall Extension Kit

Store owner replied: We’re so happy to hear this! Thank you for your support. – Sproutbox Garden Team

Easy to put together

17” Tall Extension Kit

Store owner replied: Thank you for the review! - Sproutbox Garden Team

Customer photo review of 17” Tall Extension Kit

Sproutbox was relatively easy to put together and I received several comments from friends and neighbors on how nice they look. Trying them out this first year, most likely to add another box or 2 next year.

17” Tall Extension Kit

Seems to be working out well so far. They are nice looking and was straightforward to assemble

17” Tall Extension Kit