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Growli planting calendar

The planting calendar — what to plant every month, by zone.

Each month brings a different set of jobs depending on where you garden. Pick a month below for universal tasks across the US and UK plus per-zone planting actions for USDA zones 3 through 10.

All 12 months

January

winter

Deep winter in most of the US and UK. The work this month is planning, ordering seeds, and starting the earliest cold-hardy seeds indoors for zones 3-7. Warm zones 9-10 are actively growing cool-season crops.

See January planting actions →

February

winter

Late winter — the indoor seed-starting season opens for zones 3-7 and outdoor work resumes in zones 8-10. February is when the gap between "garden planning" and "garden doing" closes.

See February planting actions →

March

spring

Spring arrives for zones 7-10 outdoors. Zones 3-6 ramp up indoor seed-starting. March is the busiest month for cool-season sowing across the US and UK.

See March planting actions →

April

spring

Peak spring planting for zones 6-8. Zones 3-5 finish indoor seed-starting and begin hardening off. Zones 9-10 shift focus to summer crops as cool-season harvests wind down.

See April planting actions →

May

spring

Warm-season planting opens across zones 5-7 once last frost passes. Zones 8-10 are in peak production. This is the highest-traffic gardening month of the year.

See May planting actions →

June

summer

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.

See June planting actions →

July

summer

Peak summer. Active harvest across all zones with succession planting for fall crops. Zones 3-7 stay productive; zones 8-10 manage heat stress while planning for autumn.

See July planting actions →

August

summer

Harvest peak month plus fall succession planting. Zones 3-7 sow autumn greens and brassica transplants. Zones 8-10 start the second tomato crop and order garlic.

See August planting actions →

September

autumn

Autumn arrives. Zones 3-7 race to plant fall greens and garlic; zones 8-10 enjoy a second growing season as heat eases. The fall garden window is open across the US and UK.

See September planting actions →

October

autumn

Garlic planting month across most US zones plus heavy harvest and bed prep. Zones 8-10 are in active cool-season growing; zones 3-7 transition to winter mode.

See October planting actions →

November

autumn

The garden settles for winter in zones 3-7 — garlic mulched, beds covered, tools cleaned. Zones 8-10 are in productive cool-season growing.

See November planting actions →

December

winter

The deepest dormant month. Indoor plants, planning, and dormant maintenance dominate zones 3-7. Zones 8-10 keep harvesting cool-season crops and citrus.

See December planting actions →

Per-zone month pages — 96 combinations

Every month page links to detailed per-zone guides for USDA zones 3-10. That's 96 month × zone combinations — pick yours for the specific list of crops to sow, transplant, and harvest right now.

Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9Zone 10

How to use this calendar

1. Find your zone

The official USDA map lives at planthardiness.ars.usda.gov. Enter your ZIP to find your zone.

Browse USDA zones →

2. Pick the month

Each month page gives you universal tasks plus a per-zone breakdown. UK gardeners get a dedicated RHS-aligned note on every month page.

3. Drill into your zone × month

The deep-dive pages list every crop to sow, transplant, or harvest right now — organized by action type with step-by-step instructions.

Source and methodology

Timing windows curated against US Cooperative Extension publications (UNL, UMN, NC State, Texas A&M, UF/IFAS, Oregon State) and the RHS sowing calendar for en-GB cross-reference. Frost-date averages from NOAA Climate Data Online within each USDA hardiness zone. Curated by the Growli editorial team.