🌿 When to Plant Oregano in Zone 12

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

No frost windows apply in zone 12. Grow oregano 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
10″ / 15″
plants / rows
Maturity
80–90 days
from transplant

Growing oregano in zone 12

Like thyme, oregano wants sun, lean soil, and to be left alone — flavor concentrates when it grows a little hard. Cut it back before flowering for the best leaves and it returns for years.

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 oregano in zone 12?

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

Does oregano grow well in zone 12?

Yes, in the right months. Oregano 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.