When to plant oregano in Zone 3

In Zone 3, the last spring frost usually passes around May 15 and the first fall frost arrives around September 15, leaving about 123 frost-free days. The windows below are computed from those frost dates, with the same math the Dibble app uses.

Short, cool season. Start most warm crops indoors and protect from late frosts.

Planting windows for oregano in Zone 3

The harvest estimate counts 90 days to maturity, then a picking window of about 150 days. These windows use typical frost dates for Zone 3; Dibble pins them to your exact ZIP code.

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Oregano in a Zone 3 season

Zone 3 gives about 123 frost-free days. Oregano needs roughly 90 days from transplant. That leaves about 33 days of slack, enough for one full crop with a little room for a cold spring.

How to grow oregano

Start seeds indoors about 6 weeks before planting out, or buy a transplant. A spreading, hardy perennial: the flavor deepens in full sun. Trim it back after flowering to keep fresh growth coming.

Companion plants

Good neighbors for Oregano:

Oregano in other zones

Not in Zone 3? Pick your zone for the same dated windows.

Keep exploring

Oregano: the full growing guide · The Zone 3 planting calendar · Every crop and zone

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Dates are estimates based on typical frost dates for the zone. Your yard has its own microclimate, so use them as a starting point and adjust as you learn your space.