🌶️ When to Plant Radishes

Seed to salad in under a month. Pick your zone below for exact dates, or read the quick reference.

Season type
Cool-season
hardy
Spacing
2″ / 6″
plants / rows
Days to maturity
22–30
from sowing

The fastest vegetable in the garden — and the most often ruined by crowding, so thin early. Sow small amounts weekly; in summer heat they bolt and turn pithy, so pause until fall.

Radishes planting windows by zone

ZoneMain planting window
Zone 1 May 11 – May 25 direct sow
Zone 2 Apr 25 – May 9 direct sow
Zone 3 Apr 10 – Apr 24 direct sow
Zone 4 Mar 31 – Apr 14 direct sow
Zone 5 Mar 18 – Apr 1 direct sow
Zone 6 Mar 6 – Mar 20 direct sow
Zone 7 Feb 23 – Mar 9 direct sow
Zone 8 Feb 8 – Feb 22 direct sow
Zone 9 Jan 16 – Jan 30 direct sow
Zone 10 Dec 21 – Jan 4 direct sow
Zone 11 Coolest months (Oct–Mar) frost-free
Zone 12 Coolest months (Oct–Mar) frost-free
Zone 13 Coolest months (Oct–Mar) frost-free

Each zone link above has the complete schedule — direct sowing, fall planting, and season-fit notes. Zone dates are typical medians; for windows built on your own city's frost dates, use the frost date lookup and planting calendar.