June planting calendar
summerWhat to plant in June
Active growing across every US and UK zone. Zones 3-4 finish transplanting warm-season crops. Zones 8-10 enter summer maintenance mode as the harvest builds.
Universal June tasks
These tasks apply to most temperate gardens across the US and UK in June. Check the per-zone sections below for the specific crops to plant in your zone.
- Mulch all warm-season beds — straw, shredded leaves, or grass clippings.
- Water deeply once or twice a week instead of light daily sprinkles.
- Stake, prune, and tie up tomatoes; remove suckers on indeterminate varieties.
- Start succession sowing — bush beans, lettuce, radishes every 2-3 weeks.
- Watch for pests: aphids, flea beetles, squash bugs, cabbage moths.
- Harvest garlic scapes (hardneck varieties) in zones 5-8.
UK gardeners — June
June is the UK's sowing-and-harvesting overlap. Direct-sow French beans, runner beans, courgettes, sweetcorn, salad leaves, carrots, and beetroot. Harvest strawberries, broad beans, peas, early potatoes, and salad. Plant out leeks and brassicas.
Most of England and Wales falls in RHS H4-H5 (roughly USDA 7-8). Scotland skews cooler (H3-H4); coastal southwest skews warmer (H5). See UK hardiness ratings →
June planting by USDA zone
Pick your USDA zone for the full crop-by-crop list for June. Each zone page includes sowing, transplanting, harvesting, and maintenance actions.
Zone 3 — June
4 actions- Transplant: Tomatoes, peppers, basil (early June — final last-frost window)
- Sow outdoors: Beans, cucumbers, squash, corn
- Sow outdoors: Carrots, beets, lettuce, chard succession
See full zone 3 plan →
Zone 4 — June
4 actions- Transplant: Final tomatoes, peppers, eggplant, basil
- Sow outdoors: Beans, corn, cucumbers, squash, melons
- Harvest: Strawberries, asparagus, lettuce, spinach, peas (late month)
See full zone 4 plan →
Zone 5 — June
4 actions- Sow outdoors: Beans (succession), cucumbers, squash, summer lettuce
- Transplant: Late tomatoes, basil, sweet potatoes
- Harvest: Strawberries, peas, lettuce, spinach, garlic scapes, radishes
See full zone 5 plan →
Zone 6 — June
4 actions- Sow outdoors: Beans (succession), cucumbers, summer squash, summer lettuce
- Harvest: Strawberries, peas, lettuce, spinach, garlic scapes, early summer squash
- Transplant: Sweet potato slips (early June)
See full zone 6 plan →
Zone 7 — June
4 actions- Sow outdoors: Heat-tolerant beans, southern peas, okra succession
- Harvest: Tomatoes (first), peppers, squash, beans, peas, garlic, onions
- Maintain: Stake tomatoes, drip irrigation, mulch
See full zone 7 plan →
Zone 8 — June
4 actions- Harvest: Tomatoes, peppers, squash, beans, melons, peaches, blueberries, onions, garlic
- Maintain: Mulch deeply, install shade cloth, drip irrigation
- Sow outdoors: Heat-tolerant southern peas, okra succession, sweet potatoes
See full zone 8 plan →
Zone 9 — June
4 actions- Harvest: Tomatoes, peppers, squash, beans, melons, citrus, garlic, onions
- Sow outdoors: Okra, southern peas, sweet potatoes (last chance)
- Maintain: Shade tomatoes, drip irrigation, heavy mulch
See full zone 9 plan →
Zone 10 — June
4 actions- Harvest: Tomatoes (winding down), tropical fruit, citrus, herbs
- Sow outdoors: Tropical greens (Malabar spinach, kang kong), okra, sweet potatoes
- Maintain: Shade cloth, mulch, irrigation — many cool-loving crops are dormant now
See full zone 10 plan →
Zones 1-2 and 11-13 in June
Sub-Arctic zones 1-2 (interior Alaska and northern Canada) are still effectively dormant for any month outside June-August. Greenhouse and cold-frame work dominates the calendar; outdoor planting compresses into a 60-90 day window.
Tropical zones 11-13 (Hawaii, southern Florida, Puerto Rico) have no frost cycle. Calendar timing depends on the wet/dry seasons rather than spring/fall frost — most temperate crops grow October through April, with the hot-wet summer as the off-season.
Source and methodology
Timing curated against US Cooperative Extension publications (UNL, UMN, NC State, Texas A&M, UF/IFAS, Oregon State) and cross-checked against the RHS sowing calendar for UK readers. Frost-date averages from NOAA Climate Data Online. Curated by the Growli editorial team.