What Plants to Plant in Summer: 30 Vegetables, Herbs & Flowers
Summer is one of the most rewarding times to be in the garden. With long days, warm soil, and plenty of sunshine, this season is perfect for growing heat-loving crops that thrive when other plants struggle. Knowing what plants to plant in summer helps keep your garden productive and beautiful until the first frost. As part of a successful seasonal gardening strategy, choosing the right plants for each season ensures continuous color, harvests, and garden health all year long.
In this guide, you'll discover the best plants to grow during summer, along with expert tips to maximize success in hot weather.
12 High-Yielding Summer Vegetables
When selecting vegetables for midsummer planting, it's important to match crops to your local climate and make the most of every growing area, especially if you're gardening in limited space.
1. Bush Beans
- Days to Maturity: 45–60 days
- Unlike pole beans, compact bush varieties mature incredibly fast. Sowing them directly into warm summer soil in July ensures a heavy harvest of crisp pods by September across the Midwest and Northeast.
2. Okra
- Days to Maturity: 50–65 days
- The undisputed king of Southern summers. Okra seeds thrive in piping-hot soil and will shoot up with minimal water once their deep taproots are established.
3. Summer Squash & Zucchini
- Days to Maturity: 45–55 days
- A second mid-July planting bypasses the dreaded early-spring vine borer populations, giving you a clean, prolific crop for late-summer and autumn barbecues.
4. Cucumbers
- Days to Maturity: 50–65 days
- Sowing slicing or pickling varieties directly into warm summer soil results in rapid germination. Provide a vertical trellis to improve airflow and shield fruits from scorching ground heat.
5. Southern Peas (Cowpeas / Black-Eyed Peas)
- Days to Maturity: 60–90 days
- An exceptional choice for the hot, humid Southeast. They double as nitrogen fixers, enriching depleted summer soils while yielding heavily.
6. Sweet Potatoes
- Days to Maturity: 90–120 days
- Plant slips in early summer. They require a long, hot season to develop sugary, nutrient-dense tubers, thriving effortlessly under the blazing Sun Belt skies.
7. Sweet Corn
- Days to Maturity: 60–85 days
- Opt for early-maturing, short-season varieties if sowing in late June or early July. Ensure they are planted in blocks rather than single rows to guarantee optimal wind pollination.
8. Swiss Chard
- Days to Maturity: 50–60 days
- While most leafy greens bolt instantly in July, Swiss Chard is remarkably heat-tolerant and will continuously produce nutritious leaves straight through to November.
9. Kale
- Days to Maturity: 50–65 days
- Sown in late summer, kale matures just as autumn temperatures drop. The touch of light frost converts internal starches into sugars, rendering the leaves exceptionally sweet.
10. Carrots
- Days to Maturity: 65–80 days
- Sow seeds in late summer for a spectacular fall harvest. Keep the soil constantly damp during germination by covering beds with a piece of burlap or clean cardboard until sprouts emerge.
11. Beets
- Days to Maturity: 50–65 days
- Perfect for a fall harvest, mid-to-late summer sowings develop strong root systems under the warm sun, leading to plump, sweet roots as the weather cools.
12. Radishes
- Days to Maturity: 21–30 days
- The ultimate fast crop. Plant these in late summer when the intense heat begins to break. They can be tucked between larger crops and harvested in under a month.
Aromatic Summer Herbs
Tropical herbs naturally reach peak performance when daytime temperatures hover in the 80s and 90s, making them prime candidates for summer planting.
13. Basil
Basil craves warm soil and intense sunlight. Planting fresh successions in summer ensures a constant supply of aromatic leaves for pestos and salads before the autumn chills arrive.
14. Rosemary
Thriving on neglect, rosemary loves heat and resists drought beautifully once its roots take hold. Plant transplants in full sun with sharp, fast-draining soil.
15. Thyme
This low-growing, drought-tolerant ground cover handles intense summer rays with ease. It is perfect for lining flagstone walkways or rocky borders.
16. Oregano
Like its Mediterranean cousins, oregano’s essential oils intensify in flavor under strong sunlight. Plant it in sandy or rocky beds where water never pools.
If you're interested in growing organic herbs, summer provides the warmth and sunlight many popular varieties need to flourish and deliver flavorful harvests.
17. Lemongrass
An exceptional ornamental and culinary grass that thrives in sweltering heat and high humidity, making it ideal for East Coast and Southern summer gardens.
18. Sage
The velvety, silvery-green leaves of sage reflect harsh sunlight, protecting the plant from intense heat stress while providing a structural anchor to the herb garden.
19. Mint
While mint tolerates heat well, it requires consistent moisture. Plant it in a pot, grow bags or container in midsummer to keep its aggressive root systems from overtaking your beds.
20. Chives
A hardy, resilient option that handles summer heat surprisingly well. Cut them back after planting to encourage a fresh flush of delicate, onion-flavored blades.
10 Resilient Summer Flowers
21. Zinnias
This heat-loving annual is an absolute champion of the summer flower garden. Direct-sow zinnia seeds in full sun for spectacular, vibrant blooms that continue until frost.
22. Sunflowers
Plant successions of sunflowers in June and July. Midsummer plantings shoot up rapidly in warm soil, delivering iconic golden backdrops by early autumn.
23. Marigolds
Highly effective as companion plants, their pungent aroma deters common summer pests like tomato hornworms and nematodes, while handling intense heat flawlessly.
24. Cosmos
Cosmos perform best in poor, dry soils and full sun. Heavy fertilization results in foliage rather than flowers, making them ideal for low-maintenance summer color.
25. Coneflowers (Echinacea)
This native perennial from North America boasts deep taproots. Once established, they effortlessly withstand severe midwestern and southern droughts.
26. Black-Eyed Susans (Rudbeckia)
Bringing a bright splash of classic Americana to the garden, these tough plants handle intense clay soil and hot humidity without breaking a sweat.
27. Vinca (Madagascar Periwinkle)
Vinca is a tender perennial that features glossy leaves and pristine flowers that absolutely refuse to wilt, even when planted along hot concrete sidewalks or baking driveway edges.
28. Lantana
Produces clusters of bright, multi-colored blooms that serve as primary magnets for native butterflies, hummingbirds, and honeybees during dry spells.
29. Portulaca (Moss Rose)
Featuring fleshy, water-storing leaves, Portulaca blankets baking, rocky ground with vibrant, jewel-toned blossoms that thrive on minimal moisture.
30. Salvia
Spikes of rich purple, red, or blue flowers offer vital nectar sources during late summer, holding up excellently to both dry spells and intense air humidity.
Tips for Successful Summer Growing
1. Know your hardiness zone.
What plants to plant in summer depends heavily on your USDA hardiness zone. Gardeners in Zones 3–6 may still be transitioning into warm-season planting, while Zones 7–10 are often already in peak summer-growing mode where May marks prime time for heat-loving crops.
2. Watch your soil temperature.
Many warm-season vegetables and flowers germinate poorly in cold soil. Wait until soil temperatures consistently reach 55–60°F before planting heat-loving crops like dahlias, gladiolus, and cannas.
3. Master the "Deep Soak"
Summer heat causes rapid surface evaporation. Instead of light, daily overhead sprinklings that lead to shallow, weak root systems, water deeply and infrequently.
- Aim for 1 to 2 inches of water per week, applied directly to the base of the plant using a soaker hose or drip irrigation.
- Always water in the early morning (before 8:00 AM) to minimize evaporation and give plants a hydration boost before the hottest part of the day.
4. Armor Your Soil with Mulch
Never leave your soil naked in July or August. Apply a 2- to 3-inch layer of organic mulch (like clean straw, shredded bark, or leaf mold) around your new plants.
Mulch acts as a barrier, dropping soil temperatures by up to 10°F and retaining crucial moisture, saving you time and water. Keep the mulch a couple of inches away from the actual plant stems to prevent rot.
5. Deploy Temporary "Sunscreen."
When introducing young seedlings or new plants to the summer garden, the transition can cause severe transplant shock.
Deploy a 40% shade cloth over your newly planted summer crops for the first 7 to 10 days. This filters the harsh afternoon sun, giving the roots a chance to establish without the plant wilting.
6. Switch to Low-Nitrogen Fertilizers
Avoid overfeeding plants with high-nitrogen fertilizers during summer. They encourage soft, leafy growth that dries out quickly and attracts pests like aphids and spider mites. Instead, use a balanced, organic slow-release fertilizer or one higher in phosphorus to encourage strong roots and fruit production.
7. Know Your Timeline (Frost Dates)
Before planting, look up your local First Fall Frost Date. Count backward from that date using the "Days to Maturity" listed on your seed packet. Add an extra 10–14 days to account for the "Fall Autumn Slowdown" (as days get shorter, plants grow more slowly). This ensures your midsummer plantings have plenty of time to mature and yield fully.
8. Stagger your plantings.
Succession planting, especially for beans, squash, and gladiolus, ensures a continuous harvest or bloom cycle rather than one big flush followed by nothing.
Conclusion
Summer offers incredible opportunities for gardeners to grow a diverse mix of vegetables, herbs, and flowers. By understanding what plants to plant in summer based on your climate zone, soil temperature, and sun exposure, you can build a garden that thrives through the hottest months and sets you up for continued success into fall. With the right plant choices and a few expert techniques, your summer garden can be as productive and beautiful as ever.
No matter where you live, summer is far from the end of planting season. In many ways, it's just getting started.