What to Plant in July 2026 ▷ US Summer Garden Guide

July: peak heat and the pivot to fall

July brings three parallel streams of garden work: harvesting the June production (tomatoes, beans, squash, cucumbers at peak volume), protecting heat-stressed crops (shade cloth, deep irrigation, pest scouting), and starting the fall garden (brassicas indoors, final heat-specialist direct sowings). The first two consume most daily hours; the third is easy to neglect but has outsized impact — a fall garden started in July will out-produce every May planting by October.

Soil temperatures at 4 inches deep are now in the 80–95°F range across most of the US. This is too hot for lettuce, spinach, peas and brassica germination in direct sun — which is why July fall-crop starting happens indoors or in shaded flats at 70–80°F. Daytime air temperatures in the 90s mean that any transplant set in unshaded full sun without 7–10 days of shade protection faces transplant shock or death. July is the month where heat management, not variety selection, determines garden success.

What to plant in July by USDA hardiness zone

Zone 5–6: succession crops plus fall starts

Zone 5–6 (upper Midwest, New England, Great Plains, mountain West) has the longest July planting window of any zone because summer temperatures stay moderate and first frost does not arrive until late September or October. This is a productive month for both summer succession and fall crop starting.

Plant in July (Zone 5–6): bush beans through mid-July (final succession for September harvest); cucumbers (early July only — needs 55–65 days to first frost); summer squash and zucchini (second succession to replace declining June plants); direct-sow carrots, beets and kohlrabi late July under shade cloth for fall harvest; start broccoli, cauliflower, cabbage, Brussels sprouts and kohlrabi seeds indoors first two weeks of July for mid-August transplanting; heat-resistant lettuce varieties (Jericho, Nevada butterhead) under 30–50% shade; final plantings of basil transplants; and heat-tolerant summer flowers (zinnia, vinca, portulaca) from transplants.

Zone 7–8: heat survival and indoor fall starts

Zone 7–8 (mid-Atlantic, Pacific Northwest lowlands, Southeast, lower Midwest) is fully in summer heat by July. The main planting activities are indoor fall crop starting and maintaining the heat-tolerant summer crops already in the ground. Direct sowing in unshaded soil is risky — seedlings can die in a single afternoon.

Plant in July (Zone 7–8): okra direct-sown (thrives in peak heat); Southern peas, cowpeas and black-eyed peas (heat-loving legumes); Malabar spinach and amaranth for summer greens; sweet potato slips (first two weeks only); bush beans in succession for September harvest (under light shade); quick Asian greens (pak choi, mizuna, tatsoi) started in flats in shade; start broccoli, cauliflower, cabbage and Brussels sprouts indoors second and third weeks of July; and heat-champion flowers (vinca, lantana, pentas, portulaca, celosia, zinnia transplants). Skip: tomato, pepper, eggplant transplants; lettuce in direct sun; any cool-season crop without serious shade protection.

Zone 9–11: heat specialists and hurricane prep

In Zone 9–11 (Florida, Gulf Coast, Southern California, desert Southwest, Hawaii), July is the hottest month of the year and often coincides with hurricane season ramping up. Daytime highs of 95–110°F eliminate most vegetable planting. The focus shifts to heat-adapted tropical and subtropical crops, plus defensive measures for the gardens already planted.

Plant in July (Zone 9–11): okra (reliable July performer); sweet potato slips (first week only in desert zones, all month on the Gulf Coast); Malabar spinach and amaranth; Southern peas and cowpeas; Cuban oregano (Coleus amboinicus — thrives in extreme heat); tropical basil varieties (Thai, lemon); lemongrass; and heat-specialist flowers only (vinca, portulaca, pentas, lantana). The real July work in Zone 9–11 is infrastructure: permanent shade cloth over any remaining tomatoes or peppers, drip irrigation maintenance, organic mulch replacement, and scouting for spider mites and whiteflies that explode in heat. Fall planting begins in August, not July — wait.

Starting fall crops indoors in July

This is the single most valuable July activity most gardeners skip. Starting fall brassicas and greens indoors (or in deep shade outdoors) during the first two weeks of July produces robust transplants ready to go into the cooling mid-August soil. The result: beautiful September–November harvests when most spring-planted crops are long gone.

• Broccoli: 55–75 days to harvest from transplant. Start seeds July 1–10 for mid-August transplanting, mid-September harvest start. Use varieties bred for fall production — Belstar, Arcadia, Green Magic all outperform spring varieties in autumn.
• Cauliflower: 60–85 days. Needs consistent moisture and cooler nights to form tight heads — which is exactly what September brings. Self-blanching varieties (Snow Crown, Amazing) avoid the need to tie leaves over heads.
• Cabbage: 65–100 days. Fall cabbage is sweeter than spring cabbage because it forms heads during cooling nights. Red varieties like Ruby Perfection store for 3+ months.
• Brussels sprouts: 90–110 days — MUST start by July 10 in Zone 5–6, July 15 in Zone 7. First hard frost actually improves flavor. Start indoors; never direct-sow.
• Kohlrabi and kale: 55–75 days. Kale tolerates hard frost and gets sweeter after freezing. Kohlrabi is ready in 55 days and can be harvested young for best texture.
• Lettuce (for fall): start transplants indoors the last week of July for cool-night late August planting. Fall lettuce outperforms spring lettuce because it matures as nights cool — never bolts.

Heat specialists for direct sowing in July

A handful of crops actually prefer July heat. These are the tropical and subtropical vegetables that originated in climates hotter than most of the US summer. If you have not planted them yet, July is the final reliable window.

• Okra: the quintessential hot-weather crop. Soak seeds overnight before sowing. Plants reach 4–6 feet tall and produce pods continuously from 50 days after planting until first frost. Cut pods at 3 inches — any larger and they turn woody and fibrous.
• Sweet potatoes: plant slips (rooted vine cuttings) the first two weeks of July in Zone 7+ for October harvest. Need 90–120 days of warm weather. Vines aggressively cover bare ground and suppress weeds naturally.
• Southern peas and cowpeas: a category that includes black-eyed peas, crowder peas, and zipper creams. Direct sow in July for September harvest. Fix nitrogen in the soil while they grow — outstanding summer cover and food crop in one.
• Malabar spinach: not a true spinach — a tropical vining green that thrives in heat where regular spinach dies. Plant once, harvest leaves all summer. Climbs trellises aggressively. Start from seed or take cuttings from an established plant.
• Amaranth: dual-use plant. Young leaves are edible like spinach; mature plants produce nutritious grain. Handles 100°F+ heat and drought better than almost any vegetable. Beautiful red varieties also work as ornamentals.
• Eggplant (transplants only): oddly heat-preferring. July transplants will produce from September to first frost. Long Asian varieties (Ping Tung, Ichiban) outproduce the standard Black Beauty in summer.

Fast-growing July crops for an August harvest

If you want quick results before the peak heat of August, these crops mature fast enough to be harvested within 25–60 days of July planting. Most require shade cloth during the germination and seedling phase to survive:

Crop	Days to Harvest	July Growing Notes
Radishes	25–30 days	Sow in shade or east-facing beds only. Water morning and evening during germination.
Arugula	25–30 days	50% shade cloth mandatory or plants bolt immediately. Astro variety is most heat-tolerant.
Bush beans	50–60 days	Final succession window. Plant by July 15 in Zone 5–6, July 20 in Zone 7–8.
Cucumbers	55–65 days	First week only. Use parthenocarpic varieties (Socrates, Diva) for best fall yields.
Summer squash	50–60 days	Second succession essential — squash vine borer kills June plants by mid-July.
Asian greens (tatsoi, pak choi, mizuna)	30–45 days	Start in flats in deep shade; transplant late July. Outperforms lettuce in July-to-September heat.

Heat-tolerant summer flowers still worth planting

July is the last month to plant summer annuals that will meaningfully bloom before fall. Choose transplants over seeds — seeds started in July rarely reach bloom size before September heat fatigue sets in. Focus on heat champions:

• Vinca (Catharanthus roseus): the most heat-tolerant bedding annual. July transplants bloom September through first frost. Tolerates 100°F+ and moderate drought.
• Portulaca (moss rose): full sun, low water, blooms continuously. Perfect for hot containers and rock gardens. July-planted portulaca blooms through October.
• Lantana: butterfly magnet with continuous clusters of multicolor flowers. Drought-tolerant once established. In Zone 9–11 treats as perennial.
• Pentas: hummingbird favorite with star-shaped flower clusters. Thrives in 90°F+ heat. Excellent in containers and pollinator beds.
• Zinnias (transplants only): skip seed in July — transplants still bloom in 4–5 weeks. Cut frequently for continuous production.
• Celosia and gomphrena: heat-proof cutting flowers that dry beautifully for fall arrangements. Gomphrena is especially bulletproof.
• Marigolds: last chance for summer color plus nematode suppression in vegetable beds. Buy transplants — seed is too slow now.

July planting table by zone

Crop	Zone 5–6	Zone 7–8	Zone 9–11
Broccoli / cauliflower (start indoors)	✅ Week 1–2	✅ Week 2–3	❌ Wait for August
Brussels sprouts (start indoors)	⚠️ By July 10	⚠️ By July 15	❌
Bush beans (direct sow)	✅ Through July 15	✅ Through July 20	❌
Cucumbers (final window)	✅ Week 1	✅ Week 1–2	❌
Summer squash (succession)	✅ All month	✅ Week 1–2	❌
Okra (direct sow)	⚠️ Early July	✅ All month	✅ All month
Southern peas / cowpeas	⚠️ Early July	✅ All month	✅ All month
Sweet potatoes (slips)	❌	⚠️ Week 1–2	✅ All month
Carrots / beets (fall)	✅ Late July	⚠️ Under shade cloth	❌ Wait
Heat flowers (vinca, lantana, portulaca)	✅ All month	✅ All month	✅ All month

Watering in July: survival rules during heat waves

July watering is no longer routine — it is survival gear. A single missed day during a heat wave can kill newly planted transplants and permanently stunt established crops. The rules tighten:

• Dawn watering is non-negotiable. Water between 5:00 and 8:00 AM. Roots absorb through the day, leaves dry before fungal disease risk rises, and evaporation losses are minimized.
• Deep soaks, never shallow sprays. 1–1.5 inches of water every 3–4 days beats daily 0.25-inch sprinkles. Deep watering drives roots down where soil stays cooler and moister.
• Drip irrigation becomes critical. If you installed it in June, optimize run times now (typically 30–45 minutes, 3–4 days per week depending on soil). If not installed, July is still worth doing — you will recover the investment in saved water and plant survival.
• Mulch must be thick. 3–4 inches of straw, shredded leaves or wood chips. Anything less evaporates the water you just applied. Re-mulch bare patches after harvests.
• Watch for wilt that does not recover. Morning wilt is often just transpiration catching up. Wilt that persists after the sun sets means the roots cannot find water — dig down 4 inches and check soil moisture. Dry? Soak immediately.

Why July is shade cloth month

Shade cloth stops being optional in July. Peppers drop blossoms above 90°F. Tomatoes fail to set fruit above 95°F. Lettuce bolts at 80°F nights. Broccoli seedlings cook at 100°F surface temperatures. All of these failures are preventable with the right shade cloth rating at the right location.

30% shade: for tomatoes, peppers, eggplant, squash and cucumber production. Improves fruit set without reducing yield.

40–50% shade: for lettuce, cool-season greens, freshly transplanted seedlings, and Zone 8–11 pepper/tomato survival. Drops leaf temperature 10–15°F.

60–70% shade: for cool-season fall crop germination (carrots, beets, lettuce seeded in July-August under shade), Zone 9–11 extreme heat protection on any remaining spring crops.

Common mistakes when planting in July

These are the failures that show up repeatedly in July gardens:

1. Transplanting in full sun at midday. A guaranteed kill in July. Always transplant at dusk or on overcast days, and cover with shade cloth for the first 7–10 days.
2. Direct-sowing brassica seeds outdoors. Broccoli, cabbage, cauliflower seeds need 70–80°F to germinate reliably. Outdoor July soil is 85–95°F. Start indoors where you control temperature.
3. Planting unsuitable tomato/pepper transplants. July-planted standard tomatoes fail to set fruit before fall frost in most zones. Use only heat-set varieties or skip entirely.
4. Ignoring pest explosions. Spider mites, whiteflies, aphids, squash vine borers, tomato hornworms, and cucumber beetles all peak in July. Scout every 2–3 days and treat early.
5. Over-fertilizing stressed plants. Heat-stressed plants cannot use extra nitrogen — it burns roots and stimulates growth the plant cannot water. Skip fertilizer during heat waves above 95°F.
6. Forgetting the fall garden entirely. The biggest July mistake. A fall garden started July 1–15 produces October–November harvests worth weeks of summer work. Skipping July starts means no fall garden.

Frequently asked questions about July planting

FAQ: What to Plant in July

Is it too late to plant vegetables in July?

Absolutely not — but the game changes. July is no longer about planting standard spring-summer crops; it is about two parallel strategies. First: starting fall vegetables indoors or in shaded outdoor seed beds (broccoli, cauliflower, Brussels sprouts, cabbage) so transplants are ready for the cooling late-August soil. Second: direct-sowing heat specialists (okra, southern peas, sweet potato slips if you can still find them, quick bush beans and cucumbers for a September harvest). What you should NOT do in July: plant spring lettuce, spinach, broccoli directly in full sun, or transplant tomatoes and peppers — all will fail in the heat.

What fast-growing crops can I plant in July?

The fastest July-sown crops that will finish before September heat fatigue sets in: radishes (25–30 days) in partial shade, arugula (25–30 days) with shade cloth, bush beans (50–60 days) for a September harvest, summer squash (50–60 days from transplant), cucumbers (55–65 days) for fall salads, and fast Asian greens like tatsoi, mizuna and pak choi (30–45 days) started under shade. All of these work best when germinated in flats kept in light shade at 70–80°F and then transplanted into the garden after 2–3 weeks. Direct-sowing works too but requires relentless watering — July soil surface can hit 130°F and cook seeds within hours.

When should I start fall crops for a cool-weather harvest?

Early to mid-July is the window for starting cool-season fall crops in Zones 5–7. Count backwards from your first frost date: broccoli, cauliflower and cabbage need 80–100 days to mature, so seeds started July 1–15 produce transplants ready for outdoor planting by mid-August, which then mature through September–October. Brussels sprouts need 90–110 days and MUST go in by mid-July in Zone 5–6. Carrots, beets, kohlrabi and turnips can be direct-sown in late July under shade cloth. In Zone 8+ wait until August for cool-season sowing — July is simply too hot, even in shade, for most brassicas to germinate reliably.

How do I keep my July garden alive during heat waves?

Five non-negotiables when temperatures exceed 95°F: (1) Water deeply at dawn — roots absorb water best in the 3–4 hours before peak heat. Evening watering is acceptable but increases fungal disease risk. (2) Install 50% shade cloth over anything newly planted and over heat-sensitive crops (peppers, late tomatoes, lettuce). Shade cloth drops leaf temperature 15°F and can be the difference between blossom drop and fruit set. (3) Mulch must be 3–4 inches deep — anything less evaporates the water you just applied. (4) Skip fertilizing during heat waves. Fertilizer forces growth the plant cannot sustain when roots are already stressed. (5) Harvest daily. Overripe cucumbers, zucchini and beans signal the plant to stop producing. Picking keeps production going through August.

What heat-tolerant flowers should I plant in July?

July is the last month to plant summer annuals that will still bloom before fall. Best July planting choices: zinnias from transplants (seed is too slow now — transplants bloom in 4–5 weeks), vinca (thrives in 100°F+ and blooms into November), lantana (butterfly magnet, drought tolerant), portulaca / moss rose (extreme heat champion), celosia from transplants, pentas (hummingbird favorite), and gomphrena (globe amaranth — dried flower champion). Avoid starting marigolds, cosmos or sunflowers from seed in July — they mature too late for meaningful bloom. Instead, buy transplants at local nurseries (often deeply discounted in July) and get 2–3 months of color before frost.