What to Plant in February — Zone 4

February ends about 9 weeks before zone 4's average last frost (May 5) — prime seed-starting territory.

Start seeds indoors — Counted back from the last frost so transplants are ready on time.

🧅 Onions Feb 24 – Mar 10 90–110 days to maturity
🧅 Leeks Feb 24 – Mar 10 100–120 days to maturity
🥬 Celery Feb 24 – Mar 10 100–120 days to maturity
🫑 Peppers Feb 24 – Mar 10 60–90 days to maturity
🍆 Eggplant Feb 24 – Mar 10 65–80 days to maturity
🌿 Parsley Feb 24 – Mar 10 70–90 days to maturity
🌿 Thyme Feb 24 – Mar 10 90–120 days to maturity

Windows use zone 4's typical frost dates (May 5 / Oct 1). For your own city's dates, run the frost lookup — the planting calendar then localizes everything automatically.

Frequently asked questions

What can I plant outside in February in zone 4?

Nothing goes outside yet in zone 4 — February is for starting seeds indoors (onions, leeks, celery, peppers, eggplant, parsley, thyme). Outdoor planting opens closer to the May 5 average last frost.

What seeds should I start indoors in February in zone 4?

Onions, leeks, celery, peppers, eggplant, parsley, thyme — each is counted back from zone 4's average last frost around May 5, so transplants are ready exactly when the garden is.

Is February the right time for tomatoes in zone 4?

Not yet — zone 4 tomatoes start indoors roughly 8–6 weeks before the May 5 last frost and transplant just after it.

February in other zones

Zone 1Zone 2Zone 3Zone 4Zone 5Zone 6Zone 7Zone 8Zone 9Zone 10Zone 11Zone 12Zone 13

Zone 4, month by month

← January March → All months

Zone 4 frost dates near you

Anchorage, AKCaribou, MEDuluth, MNGreat Falls, MTFargo, NDBismarck, NDSioux Falls, SDMontpelier, VT