How to Grow Summer Squash Vertically (2024)

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ByRachel

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Summer squash are among the easiest and most productive plants to grow in the garden. They are fun to grow too since there are so many different shapes, colors, and varieties. Often times I find myself trying to squeeze in more varieties than I have room for in the garden.

Summer squash loves the summer heat, and usually begins producing within 60 days after planting and continues all season until frost, disease, or squash vine borer takes it out.

How to Grow Summer Squash Vertically (1)

What is Summer Squash?

Squash is divided into two types, winter squash and summer squash. Summer squash differs from winter squash in that it is harvested young while it is still tender.

There are so many varieties of summer squash, including zucchini or courgette, patty pan or scallop, yellow crookneck, and yellow straight neck squash. Each type has many varieties, colors and shapes.

How to Grow Summer Squash Vertically (2)

In contrast, winter squash has a thicker rind and is harvested in the fall, cured, stored, and consumed during the winter months. Common winter squash varieties include acorn, butternut, pumpkin, and spaghetti squash. Winter squash usually grows on long, rambling vines.

Most summer squash have a bushy growth habit. The fruit begins forming at the base of the stem and continues developing up the stalk as the plant grows. Even though summer squash plants are bush like, the stem of the plant does tend to lengthen a little as it grows.

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Since I have been converting my garden to permanent raised beds that are only 3-feet wide, I had to think of some creative ways to keep the summer squash confined to the bed and prevent it from flopping out into the aisles. For me, the logical answer was to grow summer squash vertically using tomato cages to support the plant and keep it upright.

Benefits of Growing Summer Squash and Zucchini Vertically

Although the reason I wanted to grow summer squash upright was to save space, I quickly discovered that growing summer squash and zucchini in tomato cages had other benefits as well.

  1. Growing summer squash vertically saves space. The plants can easily be trained to remain in the tomato cage as it grows. The cage provides support and keeps the plant upright, preventing it from flopping out of the growing bed into the walking paths.
  2. Growing zucchini upright encourages air movement. Good air circulation around the plant helps the foliage stay dry and averts downy mildew and other fungal diseases.
  3. Vertical growth keeps the squash off the ground. There is less chance of the fruit rotting from excess moisture since the squash is not touching the ground.
  4. It’s easier to see the zucchini to harvest. Growing upright allows the squash to be more visible reducing the chance of overgrowth. No more giant zucchinis!
  5. More light gets to the plant when growing upright. Zucchini and summer squash thrive in sun. Since the foliage is more spread out when growing upright, there is less shading allowing the plant to absorb more sunlight. Also, most pollinators prefer to forage in sun.
  6. Less places for squash bugs and other pests to hide. Squash bugs, cucumber beetles and other pests have less area to hide near the ground. Also, since the foliage is upright, it is easier to scout for and destroy eggs before they hatch.

How to Grow Summer Squash Vertically (4)

How to Grow Zucchini in Tomato Cage

Step 1: Plant the zucchini and summer squash. Either transplant seedlings or direct sow summer squash in a mound of soil.

Step 2: Add the tomato cage. Simply place a tomato cage securely in the ground when the zucchini and summer squash are young. Push the legs into the ground up to the first ring.

If you are using a flimsy tomato cage, hammer in a stake or long piece of rebar for extra support. Tie the tomato cage securely to the stake.

Step 3: Mulch the plants. Add organic mulch around the plants to help keep the weeds down, the roots cool, and conserve moisture. Keep the mulch a few inches away from the stem of the plant.

Step 4: Guide the zucchini and summer squash up. As the plant grows, gently direct the foliage and stem upward through the tomato cage. A few of the hollow stems do bend over the cage wires as the plant grows, but overall the benefits of growing summer squash vertically outweigh a few bent stems.

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Growing summer squash vertically by trellising or in tomato cages helps to save space, encourages air circulation, and allows the squash to be more visible reducing the chance of overgrowth.

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Good planning is key to a successful vegetable garden

Whether you are new to growing your own food or have been growing a vegetable garden for years, you will benefit from some planning each year. You will find everything you need to organize and plan your vegetable garden in my PDF eBook, Grow a Good Life Guide to Planning Your Vegetable Garden.

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How to Grow Summer Squash Vertically (8)

How to Grow Summer Squash Vertically (2024)

FAQs

How to Grow Summer Squash Vertically? ›

You can efficiently train your squash plant vertically using a six-foot garden stake. It's best to plan ahead and put it in the earth before the plant puts down roots. Drive it a foot and a half into the garden bed for best results. Another great tip and alternative is actually to use a tomato cage!

How do you train a zucchini to grow vertically? ›

How to Train Zucchini Plants to Grow Upward
  1. Before sowing, fix a sturdy stake or trellis into the soil to be used as a support. ...
  2. Keep an eye on the plant as it grows, and once the main stem is around 5cm to 10cm long, tie it gently to its support using jute string or Softy Tie.
Aug 10, 2023

How do you grow squash successfully? ›

Squash grow best in full sun so, if possible, plant on a south or southeast facing slope. Water at least 1 inch a week. Squash do best when in soil with a pH of 6.0 to 6.7. TO deter weeds, a light layer of mulch can be applied but squash is a sprawling plant that usually doesn't fall victim to weeds.

How tall will squash grow on a trellis? ›

You will get plenty of squash from the main vines on the trellis. My plants usually grow 1-2 feet beyond the height of my 7 foot trellises, and just dangle down from the top. Squash plants grown on trellises need more irrigation that those growing on the ground.

How do you train squash to climb? ›

Once your squash has put on growth, gently weave the shoots onto and into the trellis. Soft plant ties and string can help steer wayward stems in the right direction. Most squashes will then produce tendrils that will grip their supports like a mountaineer pulling himself skywards towards the peak.

What should you not plant next to squash? ›

Cucumber and Squash

Cucumbers and squash come from the same family and both need nutrient-rich soil in order to thrive. "Planting cucumbers and squash together increases the competition for vital nutrients and will quickly exhaust the nutrients in their soil," says Spoonemore.

How do you prune zucchini to grow upright? ›

When it's not sending energy to the leaves, it can focus on the zucchini. On the ground, you've got to reach through and underneath to find the right place to prune. But you can easily see where to snip when they're up in the air. Clip off any leaves growing below the most recent fruiting blossoms.

Can you grow zucchini vertically in a tomato cage? ›

A sturdy tomato cage will also help prevent any accidental knocks or damages to the plants. In addition to tomatoes, zucchini can be grown vertically.

What is the best fertilizer for squash? ›

Pumpkins and squash have very extensive root systems and respond to thorough soil preparation and the application of 3 to 4 pounds of 10-10-10 fertilizer per 100 square feet. Fertilizer should be broadcast evenly and worked into the top two to three inches of soil prior to seeding.

Is it better to grow squash on a trellis or on the ground? ›

Growing squash vertically prevents the unsightly discoloration on squash bottoms that often occurs when squash is allowed to sit directly on damp earth. Additionally, if you like growing long squash varieties, such as tromboncino squash, trellising them will allow you to produce straighter squash.

How do you increase squash yield? ›

A garden situated in full sun with warm, well-drained, fertile soil that's slightly acidic (pH of 6.0 to 6.8) is the ideal spot for squashes. Using compost and soil amendments usually eliminates the need for synthetic fertilizers, which are high in nitrogen or phosphorus and can actually lower fruit quality and yield.

What is the best support for squash plants? ›

For squash, I prefer something sturdy like cattle panels, because squash vines can get heavy! You can construct them straight, like a wall, or bend them into hoops for tunnels. We buy ours locally at Farm and Fleet, but you can get them at just about any local farm store.

How deep do yellow squash roots grow? ›

Soil Depth Requirements for Common Garden Vegetables
Shallow Rooting 12" - 18"Medium Rooting 18" - 24"Deep Rooting 24" - 36"+
CornCucumberSquash, winter
EndiveEggplantSweet potatoes
GarlicKaleTomatoes
Kohlrabi, Bok ChoyPeasWatermelon
13 more rows

Can squash and cucumbers be planted together? ›

The first guiding principle of cucumber companion planting is to never plant a crop that belongs to the same family. Squash, pumpkin, watermelon, melon, gourds, or zucchini as a cucumber companion is a no-no. It can invite specialist or single-diet insects to feast on. Plant in between rows and with the proper spacing.

How far apart should rows be for summer squash? ›

Squash transplants should be placed 15 inches apart at planting time. Squash can also be planted in hills. Rows should be spaced 4 to 6 feet apart, with hills 3 to 4 feet apart within the row. Place two or three seeds in each hill.

Can squash and tomatoes be planted together? ›

Can you plant squash next to tomatoes? Yes, they make great companion plants. Squash have large, broad leaves which help to keep the moisture in the ground.

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