What to Plant in June
Summer is HERE — and there's still plenty to plant. Succession planting, heat-loving crops, tropical flowers, and fall crop starts for every zone.
Think it's too late to plant in June? Think again. June is one of the most productive planting months — warm soil means fast germination, long days fuel explosive growth, and dozens of heat-loving crops are just getting started. Plus, smart gardeners use June to plan and start their fall garden.
🥒 Vegetables to Plant in June
Succession Plant Beans (All Zones)
June is perfect for a second (or first) sowing of bush beans. Direct sow every 2–3 weeks through mid-July for continuous harvest. Bush beans produce in 50–60 days. Pole beans planted now will produce through September. Soil is warm — germination is fast (5–7 days). Plant 1 in deep, 3 in apart. No need for inoculant in soil that's grown beans before.
Summer Squash & Zucchini (Zones 3–7)
Zones 3–5 can still direct sow summer squash in early June. Zones 6–7, sow by mid-June for fall harvest. Zucchini is famously productive — 2–3 plants feed a family. Plant in hills, 4 ft apart. Harvest at 6–8 in for best flavor. In warm zones (8–10), plant heat-tolerant varieties like Tromboncino or Tatume for summer-to-fall production.
Cucumbers (Zones 3–7)
Direct sow cucumbers in June for zones 3–7 (soil must be 65°F+). Plant at base of a trellis for cleaner fruit and better air circulation. Sow 1 in deep, 6 in apart along the trellis. Cucumbers grow FAST in summer heat — harvest in 50–65 days. Pick daily once they start producing. Succession sow in late June for fall harvest.
Corn (Zones 3–7)
Plant corn in blocks (not rows) for proper wind pollination — at least 4 rows of 4. Sow 1 in deep, 8–12 in apart, rows 30 in apart. Corn needs rich soil, full sun, and consistent water. Sweet corn varieties: 60–100 days depending on type. Succession plant every 2 weeks through mid-June for extended harvest.
Okra (Zones 5–10)
Okra LOVES heat — June is the perfect planting month. Direct sow when soil is 65°F+ (soak seeds overnight for faster germination). Plant 1 in deep, 12–18 in apart. Okra grows 4–6 ft tall and produces prolifically in hot weather. Harvest pods at 2–3 in for tenderness. Clemson Spineless and Cajun Delight are reliable varieties.
Sweet Potatoes (Zones 5–10)
Plant sweet potato slips in June when soil is warm (65°F+). Slips go into mounded rows or raised beds, buried to just below the leaves. Space 12–18 in apart, rows 3–4 ft apart. Sweet potatoes need 90–120 frost-free days. They tolerate heat, drought, and poor soil. Harvest before first fall frost. Beauregard and Jewel are top varieties.
🌻 Flowers to Plant in June
Zinnias (All Zones)
Direct sow zinnias in June for foolproof summer color. They germinate in 4–7 days, bloom in 60–70 days from seed. Zinnias thrive in heat and full sun — they actually prefer hot weather. Plant 1/4 in deep, thin to 6–12 in apart. Cut flowers often for bigger plants and more blooms. State Fair mix for tall cutting, Profusion for borders.
Sunflowers (All Zones)
June is the last month for sunflower planting in most zones. Sow 1 in deep, 6 in apart (thin to 12–24 in). They grow fast — flowering in 55–75 days from seed. Giant varieties (Russian Mammoth, Mammoth Grey Stripe) reach 8–12 ft. Branching varieties (Lemon Queen, Autumn Beauty) produce multiple smaller flowers for cutting. Kids love watching them grow.
Dahlias (Zones 3–7)
June is still fine for dahlia tuber planting in zones 3–7 — they'll bloom August through frost. Plant tubers 4–6 in deep, eye facing up. Space dinner-plate types 24 in apart, smaller varieties 12–18 in. Stake at planting time. Pinch the main stem at 3 pairs of leaves for more blooms. Don't water until growth appears. Dahlias are the queen of late-summer cutting gardens.
Celosia & Amaranth
Heat-loving annuals that thrive in summer — plant transplants or direct sow in June. Celosia (cockscomb, plume, wheat) and amaranth (Love Lies Bleeding, globe) are striking in beds and arrangements. Full sun, moderate water. Both dry beautifully for fall and winter arrangements. Colors: red, orange, pink, yellow, purple.
Lantana & Pentas (Zones 7–10)
Plant lantana and pentas for non-stop summer color through frost. Both are butterfly magnets and heat-proof. Lantana is drought-tolerant once established. Pentas thrive in sun and humidity. Available in packs at nurseries. Plant 12–18 in apart in full sun. These are the workhorses of summer Southern gardens — reliable, low-maintenance, and constantly blooming.
Tropical Plants: Cannas & Elephant Ears
Plant canna bulbs and elephant ear tubers in June for dramatic tropical foliage. They grow fast in summer heat. Cannas: 3–6 ft, bold flowers and leaves. Elephant ears: massive 2–3 ft leaves. Both thrive in moist, rich soil with full sun to part shade. Use in containers for instant tropical impact. Dig bulbs before frost in zones 3–7.
🌿 Herbs to Plant in June
Basil (All Zones)
June is basil's month. Direct sow or transplant — basil grows fastest in warm soil (70°F+). Plant 12 in apart in full sun. Pinch flower buds to keep plants producing leaves. Succession sow every 3 weeks for continuous harvest. Genovese for pesto, Thai for stir fry, Purple for garnish, Lemon for tea. One of the easiest and most rewarding herbs.
Cilantro (Zones 3–7)
Succession sow cilantro every 2–3 weeks — it bolts fast in heat. In June, choose slow-bolt varieties like Calypso or Santo. Partial shade helps delay bolting. Once it flowers, let it go to seed for coriander (used in Indian and Mexican cooking). Or let it self-sow — volunteers pop up in fall. In zones 8–10, wait until fall to sow cilantro.
Dill
Direct sow dill in June — it grows fast in warm soil. Plant 1/4 in deep, thin to 8–12 in. Dill reaches 3–4 ft and flowers attract beneficial insects (parasitic wasps, lacewings). Fernleaf stays compact for containers. Bouquet is best for dill weed. Mammoth is best for seed heads and pickles. Let some go to seed — it self-sows freely.
Heat-Tolerant Herbs: Rosemary, Thyme, Oregano
Mediterranean herbs thrive in summer heat and drought. Plant transplants in June in full sun, well-drained soil. These are perennial in zones 6+ (rosemary zones 7+). Excellent in containers. Minimal watering once established. Harvest anytime — cutting encourages bushier growth. These are the herbs that improve with heat and neglect.
🍂 Fall Crop Planning (Start in June)
Start Fall Brassicas Indoors
In zones 5–7, start broccoli, cauliflower, cabbage, and Brussels sprouts seeds indoors in June for fall transplanting. These cool-season crops need 60–100 days to mature and perform best when they mature in cool fall weather. Start in cell trays, transplant outdoors in late July/early August. Fall broccoli is often better quality than spring.
Plan Fall Lettuce & Greens
Mark your calendar: start fall lettuce, spinach, arugula, and kale seeds in late July/August. But PLAN now — order heat-tolerant lettuce varieties and fall spinach. In zones 8–10, fall is the primary salad season. In zones 5–7, sow directly in garden beds that summer crops will vacate in August. Succession sowing ensures harvest through November.
Order Garlic for Fall Planting
Seed garlic sells out fast — order in June/July for October planting. Hardneck varieties for zones 3–6, softneck for zones 7–10. Garlic is planted in fall, overwinters, and harvests the following summer. Specialty garlic (Music, Chesnok Red, Spanish Roja) is only available from seed garlic suppliers, not grocery stores.
Succession Sow Root Vegetables
June is perfect for a second sowing of beets, carrots, and turnips for fall harvest. These cool-season crops planted now will mature in the cooler fall weather, producing sweeter roots. Beets: 55–65 days. Carrots: 65–80 days. Turnips: 30–60 days. Count backward from your first fall frost date to time the planting.
📋 June Garden Tasks
Mulch Everything
June is your last chance to mulch before summer heat hits full force. Apply 3 in of shredded bark, wood chips, or straw around all plants. Mulch reduces watering needs by 25–50%, suppresses weeds, and keeps soil temperatures moderate. Pull mulch 2 in away from plant stems. Never pile mulch against tree trunks (volcano mulching kills trees).
Set Up Irrigation
If you haven't installed drip irrigation or soaker hoses, do it now before the drought stress begins. Drip saves 30–50% water compared to sprinklers. Run drip lines under mulch for maximum efficiency. Set timers for early morning watering (before 10 AM). Deep, infrequent watering trains roots to grow deep.
Deadhead & Fertilize
Deadhead spent flowers on roses, annuals, and perennials to encourage more blooms. Feed heavy feeders (tomatoes, roses, annuals) with balanced fertilizer every 2–3 weeks. Side-dress vegetables with compost mid-season. Don't fertilize during extreme heat — wait for a cooler spell or apply in the evening.
Monitor for Pests
June is when pest populations explode. Scout daily for tomato hornworms, squash vine borers, Japanese beetles, and aphids. Hand-pick large insects. Spray aphids with strong water. Apply BT (Bacillus thuringiensis) for caterpillars. Use row covers on squash to prevent vine borer moths. Early detection is 90% of pest control.
Harvest Regularly
Harvest crops as they ripen — don't let vegetables sit on the plant. Regular harvesting signals the plant to produce more. Pick zucchini at 6–8 in, beans before they get tough, tomatoes at first blush. Morning harvest has the best flavor and crunch. Share excess with neighbors — a garden that gives is a garden that grows.
June Planting Quick Reference
| Plant | Method | Timing | Days to Harvest | Zones | Heat Tolerance |
|---|---|---|---|---|---|
| Bush Beans | Direct sow | All June | 50–60 | All | Good |
| Cucumbers | Direct sow | Early–mid June | 50–65 | 3–7 | Good |
| Zucchini | Direct sow | Early–mid June | 45–55 | 3–7 | Good |
| Okra | Direct sow | All June | 50–65 | 5–10 | Excellent |
| Sweet Potatoes | Slips | All June | 90–120 | 5–10 | Excellent |
| Basil | Direct sow/transplant | All June | 30 (leaves) | All | Good |
| Zinnias | Direct sow | All June | 60–70 (bloom) | All | Excellent |
| Sunflowers | Direct sow | Early June | 55–75 (bloom) | All | Excellent |
Frequently Asked Questions
Is it too late to plant a garden in June?
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Absolutely not! June is still prime planting season. You can direct sow beans, cucumbers, squash, okra, sunflowers, zinnias, and many herbs. You can transplant tomatoes, peppers, and eggplant in zones 3–5. Many gardeners actually prefer June planting because the warm soil means faster germination and growth.
What vegetables grow fastest in June heat?
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Bush beans (50 days), radishes (25 days), lettuce in shade (30 days), zucchini (45 days), cucumbers (50 days), and arugula (40 days). Warm soil means everything grows faster. Succession plant quick crops every 2–3 weeks for continuous harvest.
Can I still plant tomatoes in June?
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In zones 3–5, early June is still fine for tomato transplants. In zones 6–7, you're getting late but quick-maturing varieties (cherry tomatoes, Early Girl, Juliet) still have time. In zones 8–10, the spring tomato window has closed but you can plant again in late June/July for fall harvest.
What flowers bloom fastest from June planting?
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Zinnias (60–70 days from seed), sunflowers (55–75 days), marigolds (50–60 days), cosmos (60–80 days), and nasturtiums (50–60 days). For instant color, buy nursery transplants of petunias, lantana, vinca, or pentas.
How often should I water in June?
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Most gardens need 1–1.5 in of water per week. Water deeply 2–3 times per week rather than daily shallow watering. Water in the early morning. Mulch with 3 in of organic material to reduce watering needs by 25–50%. Container plants may need daily watering in hot weather.
Should I start fall crops in June?
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Yes — start planning now. Order fall seed garlic in June. Start broccoli, cauliflower, and Brussels sprouts seeds indoors in late June (zones 5–7) for August transplanting. These cool-season crops need 60–100 days and do best when they mature in cool fall weather.
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