Growing collard greens in zone 12
Collards handle both more heat and more cold than most brassicas. Flavor improves dramatically after the first frost — in much of the South they’re grown right through winter.
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 collard greens in zone 12?
Zone 12 is frost-free, so timing flips from frost-avoidance to heat management: plant collard greens through the coolest months, typically October to March. Summer heat, not winter cold, is what ends this crop here.
Does collard greens grow well in zone 12?
Yes, in the right months. Collard Greens 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.