Growing radishes in zone 12
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.
Zone 12 covers hawaiʻi lowlands, Puerto Rico — tropical — timing follows wet and dry seasons rather than frost.
Make it local
These windows use zone 12's typical frost dates. For windows computed from your frost dates, run the ZIP code frost lookup and open the planting calendar — it remembers your city. The seed starting scheduler turns the whole seed rack into one printable, date-sorted list.
Frequently asked questions
When should I plant radishes in zone 12?
Zone 12 is frost-free, so timing flips from frost-avoidance to heat management: plant radishes through the coolest months, typically October to March. Summer heat, not winter cold, is what ends this crop here.
Does radishes grow well in zone 12?
Yes, in the right months. Radishes is a cool-season crop, so grow it through zone 12's mildest stretch and expect it to bolt or fade as serious heat builds.