8 vegetables that grow better when started in midsummer

It’s easy to assume that spring is the only time to plant vegetables, but several popular crops actually produce better flavor, texture and harvests when they’re started in midsummer.

The key is choosing vegetables that thrive in cooler weather and giving them enough time to mature before your area’s first frost. July and August heat can make it tough for young seedlings to establish, but consistent watering, afternoon shade and a layer of mulch can help plants power through the hottest weeks of the season.

Whether you’re filling empty garden beds after spring crops have finished or simply eager to enjoy fresh vegetables well into fall, these crops deserve a spot in your late-season garden.

It’s not too late for these adaptable crops; you just need to follow a consistent plant care routine to help them cope with the heat and drought.

1. Kale

Kale is one of the best vegetables to start in mid-summer because cool weather makes the leaves taste better as the plant matures.

“Certain varieties like Lacinato kale handle hot weather better and can even continue growing in the winter in mild climates,” says Jessica Mercer, horticulturist at Plant Addicts.

Sow seeds in rich, well-drained soil in full to partial sun, spacing plants about 12-18 inches apart. Keep the soil evenly moist while seedlings are getting established. Once plants begin producing, harvest the outer leaves first so the center continues growing.

2. Spinach

Spinach is another cool-season favorite that tends to perform better later in the year than it does during spring.

“Spinach is often easier as a late crop because it prefers cool weather,” Mercer explains. “In mild climates it may even overwinter.”

Sow seeds in mid-summer to give plants time to grow before fall. Plant in full sun to light shade, spacing seeds two to four inches apart for baby greens or farther apart for mature plants.

Keep the seedbed consistently moist because spinach germinates poorly in hot, dry soil, and harvest young leaves regularly for salads or allow plants to mature for larger harvests.

3. Lettuce

If your spring lettuce bolted as temperatures climbed, a second planting can give you much better results.

“Leafy greens like lettuce can actually perform really well when their seeds are sown mid-summer,” says Steve Corcoran, CEO of Lawn Love. “These are cool-season vegetables, meaning they’re best when grown for harvesting in the fall or even early winter.”

Just remember that young lettuce seedlings still need protection from summer heat.

“You may want to choose a spot that provides a bit more shade, and make sure to water them well,” he adds.

4. Radishes

Radishes are one of the easiest vegetables to tuck into empty garden spaces after spring crops have finished because they mature so quickly.

“Fall-grown radishes usually have better texture than those struggling through hot weather,” Mercer says.

Sow seeds directly in full to partial sun, spacing them one inch apart and thinning as needed. Keep the soil evenly moist to prevent pithy or woody roots. Many varieties mature in just three to five weeks, making it possible to plant several successions before frost arrives.

5. Beets

Beets love cooler weather as they mature.

“Beets are a good mid-summer crop because they tolerate cool fall weather and can be harvested at different sizes,” Mercer says.

Plant seeds in loose, fertile soil in full to partial sun, spacing plants three to four inches apart after thinning. Water consistently while the roots develop to prevent cracking and woodiness.

Young beet greens can also be harvested throughout the season without preventing the roots from continuing to grow.

6. Swiss Chard

Swiss chard is one of the most forgiving vegetables for gardeners getting a later start.

“It keeps producing as temperatures cool, and you can harvest outer leaves while the plant continues to grow,” Mercer says.

Plant in fertile, well-drained soil in full to partial sun and space plants about 12 inches apart. Keep the soil evenly moist for steady leaf production. Unlike some leafy greens, Swiss chard tolerates warm weather well while still producing beautifully through fall.

7. Broccoli

Broccoli is one of the best vegetables to start in mid-summer for a fall harvest.

“The plants prefer to mature in cool weather and produce better heads than during hot spells,” Mercer says. “You can start seeds mid-summer, but transplants give you a more comfortable window before the first frost date.”

Give plants full sun, fertile soil and about 18 inches of space between each one. Water deeply once or twice a week, depending on rainfall, and apply a light layer of straw mulch to keep roots cool and conserve moisture.

After harvesting the main head, many varieties continue producing smaller side shoots.

8. Carrots

Carrot roots develop their sweetest flavor as temperatures cool.

“Carrots do much better with a mid-summer planting,” says Tammy Sons, founder and CEO of TN Nursery. “Root crops like carrots are sweeter when grown to maturity in the fall.”

Sow seeds directly into loose, stone-free soil since carrots don’t transplant well. Keep the seedbed consistently moist until seedlings emerge, then thin plants to give developing roots plenty of room.

A layer of mulch can help keep the soil cool and retain moisture during the hottest weeks of summer. By the time fall arrives, you’ll have crisp, sweet carrots that often taste even better after a light frost.

Sources:

• Jessica Mercer, horticulturist at Plant Addicts
• Steve Corcoran, CEO of Lawn Love
• Tammy Sons, founder and CEO of TN Nursery

Copyright 2026 The Arena Group, Inc. All Rights Reserved