When to Plant in Maine

Maine's growing season is short but productive, characterized by cool temperatures and long summer days. From the rocky coast to the northern forests, Maine gardeners have developed resilient techniques to make the most of their time.

The key to success in Maine is season extension and choosing varieties bred for northern climates. With a frost-free window that can be less than 100 days in some areas, every week counts in a Maine garden.

Common Mistakes

Planting warm-season crops too early — coastal Maine can stay cool well into June.
Not using row covers — these are essential for protecting against early fall frosts in the northern part of the state.
Choosing long-season varieties — look for 'days to maturity' numbers that fit within your local window.
Ignoring soil temperature — the ground in Maine stays cold long after the air warms up in spring.

FAQ

What is the last frost date?

Last frost ranges from mid-May on the coast to early June in the northern interior.

When should I start tomatoes indoors in Maine?

Early to mid-April is usually the best time for indoor starting in Maine.

Can I plant before the last frost?

Yes, hardy crops like peas, kale, and potatoes can handle the cool Maine spring.

Why does timing vary so much within Maine?

The moderating effect of the Atlantic Ocean creates a much longer season on the coast than inland.

What if I live in a frost-free area?

Maine has no frost-free areas; the entire state experiences significant winter freezing.

How does Plan My Garden create my schedule?

We factor in Maine's unique geography and short season to provide a precise and realistic planting plan.

City planting guides in Maine

Portland