When to Plant in Massachusetts

Massachusetts gardeners work with a moderate growing season that runs roughly from mid-May through mid-October. Cape Cod and the Islands enjoy milder conditions, while the Berkshires in western MA have a shorter, cooler season.

Starting seeds indoors is essential for warm-season crops in Massachusetts. The combination of rich New England soils, reliable summer rainfall, and cool fall weather makes it great for both warm and cool-season vegetables.

Common Mistakes

FAQ

What is the last frost date?

The last frost date is the typical date in spring when your area has its final frost. After this date, it's generally safe to plant warm-season crops outdoors.

When should I start tomatoes indoors in Massachusetts?

Start tomato seeds indoors about 6–8 weeks before your last frost date. For most of Massachusetts, that means starting seeds in late March to early April.

Can I plant before the last frost?

Yes — cool-season crops like lettuce, peas, spinach, and broccoli can handle light frost and should be planted 4–6 weeks before your last frost date.

Why does timing vary so much within Massachusetts?

Cape Cod and the coastline are moderated by the ocean, while the Berkshires and interior have colder winters and later frost dates. Elevation plays a big role too.

What if I live in a frost-free area?

Massachusetts doesn't have frost-free areas, but coastal communities enjoy a longer growing season. Enter your zip code in the app for exact timing.

How does Plan My Garden create my schedule?

You enter your zip code, and we look up your local frost dates. Then based on the crops you pick, we calculate when to start seeds, transplant, and harvest — personalized to your location.

City planting guides in Massachusetts

Popular ZIP frost dates

Crop planting guides in Massachusetts