When I finally figured out the secret to growing zucchini vertically. It made a huge difference in production & quality and I got more from less space. I had less disease and could see the fruit easier. It was a great choice!

I’ve been vertical gardening for some time now, so I can make the best use of limited space. But until recently, I have not had success with one of my favorite plants – zucchini! Summer squash and zucchini are such bushy plants and while they able to grow vertically, in the past I couldn’t figure it out. I knew that if I could nail down this vertical support, it would allow me to have more room available in my vegetable garden! Last year was the first year I figured it out and it gave me a bountiful harvest and saved space! So if you have a small space, or you just need a good idea for how to get more into your large garden, this post is for you!

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Why start growing zucchini vertically?

Zucchini takes up lots of space in the garden. It craws along the ground and produces enormous leaves. Those leaves crowd out everything around it. The fruit also lays on the garden soil. Unfortunately it’s is a great way for it to develop scars in the flesh or lead to bug damage.

Growing zucchini vertically is one of the best ways to solve these issues. It provides air circulation, gives you the best fruit, allows you to have a huge plant in a smaller area, and it gives you access to the stem of the plant for a super effective way to prune! Not only does it get the fruit off the ground, but it allows you to only use a small area for the zucchini, utilizing your garden space more efficiently. It normally takes up multiple square feet! Another amazing benefit of growing zucchini vertically is that it gives you easy access to the stem for pruning. This allows the air to flow all around the plant.

Why couldn’t I get growing zucchini vertically to work?

I first heard that you could grow zucchini vertically when I was reading All New Square Foot Gardening. Mel Bartholomew was mentioning that you could make zucchini go up the frame trellis on the square foot garden beds. I could not figure out how to weave those huge pokey zucchini vines through the waffle like back supports. By the end of the growing season, I had given up. The zucchini plant was just hanging off the support structure.

But I desperately wanted to have the benefit of the zucchini taking up less space, having better air circulation, and producing fruit that wasn’t damaged by bugs or animals. So the next year I tried to tie it to bamboo poles and failed miserably. The young plants did well, but the squash plants become so heavy with the weight of the fruit that it just fell over.

I know some people even use a tomato cage, just like you’d use to keep control of tomato plants. While I never tried the tomato cage method, I think I found something that worked way better as a climbing aid for growing zucchini vertically.

Last year, everything changed!

I was not going to let this particular plant get the best of me. So I tried again. This time, I was very diligent about going into my garden every single morning. Wouldn’t you know that having the proper kind of stake, and having consistency were the keys for me?!

Zucchini grows SO fast in the beginning that if you miss a couple days, suddenly your zucchini plant is flopped over and those fat hollow stems breaks off, ruining the plant. But if you’re diligent in the beginning, it pays off in the end!

How to start growing zucchini vertically

The first thing to do when growing zucchini vertically is to have all the supplies ready when you plant your zucchini seeds. For the best results, you’ll want to have the following supplies available on the day you plant:

Zucchini seeds or the seedling you started with soil blocking (read my post here on how to do that)

Heavy duty stakes – one for each plant – I’ve used this T – Post in the past, but this year I’m trying this garden stake and it seems strong enough (do not use a bamboo stake, as I have found those to be flimsier)

Ties to tie up the plant – Read about my favorite garden plant ties here. If you’re in a hurry and just want to buy them, these seem like a great option!

(You won’t need the ties that first day unless your seedlings are pretty big. But you want to have them ready so you’ll be able to use them as soon as you see the need.)

What steps do I follow for growing zucchini vertically in my home garden?

1. Plant either a seedling from a soil block*, or a zucchini seed into the ground and water well.
2. Drive in a stake or T – Post into the garden soil in the ground near the seed or base of the plant.
3. If using a seedling and it’s grown quite a bit already, loosely tie the stem to the stake at the base of the stem.
4. Each day, visit the garden and be ready to tie a new portion of the zucchini stem to the stake. Make sure to tie loosely so that as the stem increases in circumference, it won’t be strangled by the tie. Tying the zucchini stem to the stake at regular intervals is the key! It doesn’t take much time and it’s SO worth it!
5. Tie just under a set of leaves. This gives it sort of an anchor so if it starts to slide down, it catches on the set of leaves.
6. Continue with tying up every few days at regular intervals, as needed.
7. Prune all the leaves below the bottom fruit to force nutrients to the fruit and new leaves.
8. Enjoy your beautiful, vertical zucchini!

*The benefit of using a seedling is that you’ll get a big head start over the seed planted directly into the soil. However, summer squash doesn’t transplant well, so I’d only recommend doing this if you’re using soil blocking. See the details on this method here.

Why do I need to put the stake in the day I plant it?

This is a great question! Any time you’re gardening and using a stake or post of any kind, you’ll find that they say to put it in immediately upon planting. Even though you won’t need it right away, it causes the least root disturbance if you put it in right away. Waiting until the plant gets all spread out and big and comfy in the soil means that those roots will be extended quite a bit from the main stem. If you drive a stake in at that point, you’ll be cutting through all those strong and secure roots.

Instead, you’ll drive the stake in right away. As the plant grows and develops, the roots will snake their way around the post in the ground and grow strong and healthy. It causes less disturbance to the plant, and that’s always our main goal! With that being said, if you don’t have your stake yet, you can still plant your seedling or seed. You’ll just want to get that post or stake in as soon as possible for the best possible outcome for the plant.

Why is pruning zucchini important?

Plants send out nutrients to their leaves to keep them strong because leaves are the life blood of the plant. Plants bring in water through their roots, but the leaves make sunlight into food via photosynthesis. So these leaves are SUPER important! But because they are so important, they take a lot of nutrients to keep them strong and stable.

In a zucchini plant, the leaves that are necessary are the ones above the fruit, shading it and protecting it. But it takes quite some time for the leaves below the fruit to begin to die off. In order to redirect all those nutrients to the newer leaves and the fruit, I always prune my zucchini plant below the bottom fruit.

It actually looks super funny! When I see it, I think of one of those funny poodles who just gets home from the groomer and has a skinny tail with a puff on the end! It looks funny, but trust me. This allows you to have more fruit. It will also keep your plant cleaned up so you can see when the zucchini is ready to pick.

When I prune back my zucchini plants, it looks like a massacre happened (see photo below). That’s totally ok! Your plants will thank you!

Will the Zucchini fall off if it gets too big?

This is actually an unexpected result of growing vertically! I didn’t realize that when the zucchini was growing on the ground, it blended in with the chipped wood and leaves and I often missed one under the zucchini leaves. Suddenly, I had a baseball bat sized one hiding under all those enormous leaves!

When it grows vertically, however, you can see the fruit hanging down very easily! So I find that I don’t have zucchini that is large enough to fall off. Unfortunately, you’ll still have situations like this photo where you go out of town and come back to an enormous fruit on your zucchini vines. That’s totally fine! As the stem grows, it becomes as large as it needs to be to support the weight of the fruit. So just like growing winter squash in a trellis or arch, the stem is thick enough to support the growth and I’ve never had one fall off the stem when I’ve used vertical growing!

What do I do with huge zucchinis!?

I don’t sauté these huge ones because they can be a bit tough. But these are the ones that I’ll often grate for fritters or zucchini chocolate chip pancakes or zucchini bread or zucchini bread oatmeal. If the skin is really thick, you can go ahead and peel it first. Then cut it in half lengthwise and scoop out the seeds – they tend to be really fat in large zucchini. Then grate the remainder of the fruit and use immediately, store it in the fridge for up to a week, or freeze!

When I freeze leftover shredded zucchini, I normally measure it out into the amount I use for my favorite recipes and mark that on the outside of the quart baggie. This way, I can grab a bag out of the freezer that has the exact amount I need for that particular recipe.

What happens if I forget to tie it up?

Toward the end of summer, I tend to get distracted. I did great all summer tying it up at regular intervals, and then I forgot for a little while. In this situation, somethings the hollow stem can crack off and ruin the plant. Luckily, even though the stem flopped over above the highest tie, it did not break. I went out with lots of t-shirt ties and did my best to gently guide it up the post. It worked!

So don’t lose heart if this happens to you! Just try your best to be really gentle with it. The hollow stems are flexible, but can be snapped easily if you’re not careful.

What kind of zucchini should I grow?

This is a total personal preference! I think the quintessential zucchini is the Black Beauty plant. It has a really dark, shiny skin and when it’s picked small, it’s so tender and delicate!

However, my very favorite is the Italian Striped variety! Honestly, if you knew me in person, you may say that I like it just because it’s not what everyone else grows and there’s probably truth in that! I like to be different and go to the beat of my own drum. But I also think this one looks SO pretty and different in summer dishes! You should really try it!

No matter what, I usually choose seeds that are heirloom variety. That means they haven’t been cross bred and if you save the seeds from your fruit and plant them next year, you’ll get the very same thing. If you have any other questions, let me know!

That’s it! Like I mentioned earlier, growing zucchini vertically is a super simple process, but it does take foresight and a little diligence in order to be successful. Getting more out of limited space is totally worth it!

Happy Gardening!

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