How Do You Plant Summer Squash

This post contains affiliate links. As an Amazon Associate I earn from qualifying purchases. If you click a link and make a purchase, I may receive a small commission at no extra cost to you.

You plant summer squash by sowing seeds or transplants directly in the garden after the last frost date.
 
Summer squash is one of the easiest vegetables to grow, and it rewards you with a fast, abundant harvest.
 
If you’ve been wondering how do you plant summer squash so it thrives instead of just surviving, the answer comes down to timing, soil, and spacing.
 
In this post, we’ll walk through how to plant summer squash step by step, from picking the right spot to caring for your plants as they grow.
 

How Do You Plant Summer Squash: The Basics

When you plant summer squash, you’re working with a warm-season crop that hates the cold.
 
That means you can’t rush it into the ground while there’s still a chill in the air.
 
Here’s what you need to know before you plant summer squash.
 

1. Wait for Warm Soil

Summer squash seeds germinate best when the soil temperature is at least 60°F, though 70°F is even better.
 
If you plant summer squash too early, the seeds will just sit there and rot.
 
So wait until about two weeks after your last expected frost date.
 

2. Pick a Sunny Spot

Summer squash plants need at least six to eight hours of direct sunlight every day.
 
The more sun they get, the more squash you’ll harvest.
 
A spot that stays shaded in the afternoon will give you weak plants and a disappointing yield.
 

3. Amend the Soil

Summer squash loves rich, well-draining soil loaded with organic matter.
 
Before you plant summer squash, mix in a few inches of compost or aged manure.
 
This feeds the plants slowly and helps the soil hold moisture without getting waterlogged.
 

How to Plant Summer Squash Seeds and Transplants

You can plant summer squash either from seed or from transplants, and both work well.
 
Seeds are cheaper and give you more variety options.
 
Transplants give you a head start, which is handy in short growing seasons.
 
Here’s how to do each one properly.
 

1. Planting Summer Squash Seeds

Sow seeds about one inch deep and two to three feet apart in rows.
 
If you’re planting in hills, put three to four seeds per hill and space the hills three to four feet apart.
 
When you plant summer squash this way, thin the seedlings to the strongest one or two per spot once they sprout.
 

2. Planting Summer Squash Transplants

If you started seeds indoors, harden the seedlings off for about a week before transplanting.
 
Set them in the garden at the same depth they were growing in their pots.
 
Water them well after you plant summer squash transplants so the roots settle in.
 

3. Give Them Room to Spread

Summer squash plants get big, and they need airflow to stay healthy.
 
Crowded plants are more likely to develop powdery mildew and other problems.
 
So don’t try to squeeze more plants into a small space just because you plant summer squash in a hurry.
 

Caring for Summer Squash After Planting

Once your summer squash is in the ground, the real work begins.
 
The good news is that summer squash grows fast, so you won’t be waiting long for results.
 
Here’s how to keep your plants happy.
 

1. Water Deeply and Regularly

Summer squash needs about an inch of water per week.
 
Water at the base of the plant rather than overhead to keep the leaves dry.
 
Wet leaves invite fungal diseases, which is the quickest way to ruin a healthy squash patch.
 

2. Feed Them Well

Summer squash is a heavy feeder, so side-dress with compost or a balanced fertilizer once the plants start flowering.
 
This keeps them producing through the season instead of fizzling out early.
 

3. Watch for Pests and Disease

Squash bugs, vine borers, and powdery mildew are the usual suspects.
 
Check your plants often and deal with problems early.
 
Row covers can help with pests, and good spacing helps prevent disease.
 

4. Harvest Often

Pick summer squash while they’re small and tender, usually when they’re six to eight inches long.
 
The more you harvest, the more the plant keeps producing.
 
Letting squash grow too large slows down new fruit, so stay on top of it.
 

So, How Do You Plant Summer Squash?

You plant summer squash by sowing seeds or transplants in warm soil, in a sunny spot, with plenty of room to spread.
 
From there, consistent watering, feeding, and harvesting keep the plants productive all season.
 
Now that you know how do you plant summer squash the right way, you can look forward to a steady supply of fresh squash from your own garden.