🥬 When to Plant Bok Choy in Zone 12

Zone 12 is frost-free (Hawaiʻi lowlands, Puerto Rico) — plant bok choy through the coolest months, typically October to March.

No frost windows apply in zone 12. Grow bok choy through the coolest months (typically October–March); it bolts or fades once real heat arrives.
Zone 12 frost window
Frost-free
Hawaiʻi lowlands, Puerto Rico
Spacing
8″ / 15″
plants / rows
Maturity
45–55 days
from sowing

Growing bok choy in zone 12

Bok choy bolts at the first sign of stress in spring, so fall sowings are usually more reliable. Harvest whole heads or pull outer stalks; baby bok choy is ready in a month.

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 bok choy in zone 12?

Zone 12 is frost-free, so timing flips from frost-avoidance to heat management: plant bok choy through the coolest months, typically October to March. Summer heat, not winter cold, is what ends this crop here.

Does bok choy grow well in zone 12?

Yes, in the right months. Bok Choy 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.