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How to Grow Summer Squash [Planting Tips + Different Types]

Whether you’re growing yellow squash, pattypan, or zucchini you can’t go wrong planting summer squash. The massive plants are surprisingly easy to grow and so productive you’ll be sneaking squash onto your neighbor’s porch all summer.

green immature patty pan squash on the vine with text overlay "how to grow summer squash: varieties & planting tips"

Summer squash is a pretty big category with a surprising amount of variety in shape and color, they all have a similar flavor but some varieties are especially delicious. All of the types of summer squash are in the Cucurbita family that also includes pumpkins, winter squash, and cucumbers.

More specifically they all fall under the species umbrella of Curbita pepo. The autumn squashes or short term storage winter squash, acorn and spaghetti squashes, are the same species.

view of stuffed zucchini filled with fresh sweet corn, chopped tomatoes, mozzarella and sausage

Unlike their very close relatives, the winter squash, summer squash are eaten in the immature phase when the skin is still soft. They can be eaten from the tiny baby size all the way up to giants overgrown boats that can be hollowed out and stuffed if you aren’t in the mood for a canoe ride.

As they get bigger the flavor gets waterier and the flesh can get an unappealing stringy texture. One great thing about summer squash is they keep producing as long as you keep them picked so don’t feel bad eating them when they’re small.

The specific size will depend on the variety and type of squash but the seed packet will give you a good idea of when to start picking. And of course you’ll have opportunity for a little trial and error.

Get the Recipe for Farm Stand Stuffed Zucchini

If you forget about your squash (or let’s be honest, run out of room on the counter) the skins will get harder and the seeds inside with start to mature and harden. At this point, the plants will likely stop putting out new flowers.

You don’t have to let them go to waste though, either chop them up and throw the squash in the compost or feed them to your voracious flock of chickens.

Interested in keeping chickens? I’ve got you covered: Raising Chickens

Types of Summer Squash

One of my most closely held beliefs is that gardening should be fun and you should go out of your way to plant weird and interesting things. I have the luxury of a large garden and every year I grow a few different kinds of summer squash.

I’ve had the same favorite variety for a few years now but I’m always on the lookout for a new number one. Summer squash are grown from seed, most often planted directly in the soil, and it’s really easy to end up with half a dozen different varieties growing every season.

Read more about Ordering Seeds

Unless you really like zucchini bread or you have a large family that enjoys being saddled with free veggies, try not to get carried away with the number of plants you grow. If you want a larger variety try planting one of each type.

I have no self-control and I usually plant 6-8 each year, but I also have a ravenous flock of chickens that happily take care of the excess. A normal family will be happy with 1-2 plants per person.

All of the different types of summer squash are the same species and as a result the break down between different types is pretty murky.

Zucchini

The classic summer squash most of us love (or loathe by the end of the season!) is the green zucchini. These summer squash are super popular and you can find about a million recipes featuring this lovely squash.

Zucchini tend to be green but you’ll occasionally see a yellow or bicolor variety. They have a straighter shape with a slight taper and when they get mature and over grown the end begins to swell up like a bowling pin.

One of the most popular types of heirloom zucchini is Black Beauty, a variety from the 1920s is known for its deep green skin. My absolute favorite, can not be beaten for flavor variety is Cocozelle squash. It’s an even older variety from the 18000’s with a light, mottled green color.

Ball Zucchini

Similar in flavor and color to the traditional elongated zucchini these fun summer squash are shaped like a little ball! There are a few different varieties of round zucchini including this speckled light green variety, the popular hybrid 8 ball and the heirloom summer squash Tondo Scuro.

The fun shape makes them a big hit with kids. They’re also great for stuffing.

Straight Neck Summer Squash

When I was growing up we called anything green zucchini and anything yellow summer squash, even though zucchini are a summer squash.

Yellow summer squash comes in two varieties, with a straight neck, and with a curved neck. Straight-necked yellow summer squash look a lot like yellow zucchini.

close up view of yellow summer squash plant with young squash growing from the center

They vary in color from pale to deep yellow. They can be used interchangeably with zucchini in recipes. This year I’m trying a new variety called Cube of Butter and I’m pretty excited to see how they turn out.

Crookneck Summer Squash

The second type of yellow summer squash are the crooked necked varieties. They’re less common today than the straight-neck types.

One thing to keep in mind with crookneck squash is the skin tends to harden up faster than with the straight neck varieties. Their skin isn’t smooth and has a bumpy texture.

Patty Pan Summer Squash

If you’re looking for weird this is the squash for you. Pattypan squash look like alien space ships.

They have the best flavor when they are small and look soft of like a fat jelly fish but make sure you let at least one grow until it looks like an X-Flies extra.

How to Grow Summer Squash

Summer squash grow on large plants that require lots of moisture and nutrition. They are considered heavy feeders in the garden.

It’s fairly common to have new plants growing in compost or even manure piles from discarded squash or pumpkin guts. As with most plants, they grow best if allowed to grow quickly and unimpeded.

I like to plant my summer squash in a garden bed that had been filled up with either alpaca poop or bedding scooped right out of my deep liter method chicken coop in the fall.

Usually by the time I’m ready to plant the earthworms have done their things and the poop has been worked into the soil. The extra organic matter does a great job holding onto water and adding more nutrients for the plants.

Summer squash plants are big compared to most of the things we grow in the vegetable garden but they’re actually pretty dainty compared to their crazy winter cousins. Instead of long trailing vines that scramble up and over anything that stands still long enough they maintain a bushy shape.

They should be planted in warm soil, about 70° F, well after the last frost date. These plants are sensitive little babies when it comes to cold weather!

You’re better off waiting an extra week for warm weather than trying to push them to start too early. The seeds you sow under the better conditions will soon over take the early plants that were stunted by cool weather.

It is possible to give your plants a head start indoors but you need to take care to start them in large pots (look for 4″ across the top) and get them out in the garden asap, by the time they’re 3-4 weeks old.

If you struggle with germination or hungry chickens digging up all of your seeds this might be a good route for you to take. Summer squash are quick growers and you’re perfectly fine just planting them in the garden.

Learn more about Starting with Seeds Vs. Starting with Plants

Plant your summer squash in direct sun about 18 inches apart. My entire garden is 4 foot wide beds, I plant two rows of summer squash with 18 inches between each plant in a bed.

If you struggle with cucumber beetles or late season temperature dips below 65° plant to cover your young plants wit floating row cover until they begin to flower.

Squash plants have both male and female flowers and the first blossoms to open are usually male. The flowers are edible and you can eat almost all the male flowers without having any issues with pollination.

Read more about Edible Flowers

Plants will have both male ad female flowers on them at the same time. You can easily tell the difference between the flowers by looking right behind the flower where it connects to the stem.

On female flowers there will be a swollen area where the stem connects to the flower, this is absent on male flowers. This will soon become your squash.

In Containers

Thanks to their compact bushy growing pattern summer squash are a great option for container gardens. It is important to remember that they are large, hungry plants so give them a big pot and make sure they stay watered.

Stick with pots or growing containers that hold at least 5 gallons. This will provide ample room for a strong root system and keep your plants healthy.

I’m bad at watering and I avoid terra cotta like the plague, it sucks moisture out of the soil and I just can’t be trusted to keep anything alive in it. However if you are a better gardener than me you shouldn’t have any trouble finding large terra cotta pots.

Make sure you’re filling your containers with a potting mix intended for use in containers. If you’re going to fill them with regular dirt you’re better off just planting the seeds in the ground.

On a Trellis

With the exception of tromboncino (aka zucchini rampicante) summer squash all have a bushy shape and don’t require a trellis. The plants are small enough that you’d honestly be wasting the trellis, instead save it for cucumbers or a winter squash variety.

Summer Squash Companion Plants

Most home gardens are filled with companion planting by default, unless you’re growing acres of veggies there’s a good chance you’ve got different crops grown in close proximity.

When it comes to companion planting with summer squash there are two ways to go. You can plant a short-term crop that will be done by the time the monster plants get big enough to grown them out or longer term companions that are in it for the long haul.

If you are looking to fill up the space while your zucchini or patty pan fill in look for varieties with a short turn around like lettuce, radishes or turnips. These crops will be out of the garden into the kitchen by the time that the summer squash plants reach their full size.

The other option is to plant something that can stand up to the competition offered up by the squash plants. The three sisters method of gardening is a really popular companion planting method that pairs squash, pole beans, and corn in one plot.

The three crops work together in a symbiotic relationship for mutual success. The corn (or sunflowers) provide a tall support for the pole beans, the pole beans produce nitrogen and improve the soil while the large leaves of the squash plant shade the soil, retaining moisture and deterring weeds.


Check out my Vegetable Garden page for more ideas or start here:

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