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What Grows in Lowell, MA?

Lowell north of Boston has a productive growing season with adequate rainfall and warm summers.

Zone

USDA 6a

Last frost

April 22

First frost

October 15

Frost-free days

158
Quick Answer

Lowell is in USDA Zone 6a with about 158 frost-free days, and you can grow tomatoes, peppers, beans, squash, and more here.

Planting tips for Lowell

Plant warm crops after May 5. Good urban growing conditions. Fall garden September.

What to plant, and when

Timing by your frost dates — last frost April 22, first frost October 15.

🌱 Start indoors (pre-frost)

Tomato, Cherry Tomato, Bell Pepper, Chili Pepper, Cucumber, Zucchini, Eggplant, Pumpkin

❄️ Direct-sow early (cool season)

Lettuce, Spinach, Kale, Broccoli, Carrot, Radish, Beets, Onion

☀️ Plant after last frost

Green Beans, Potato, Sweet Potato, Corn, Microgreens, Rhubarb

🍂 Plant in fall

Garlic

What grows well in Lowell

USDA Zone 6a

Frequently asked questions

What hardiness zone is Lowell, MA in?

Lowell, MA is in USDA Hardiness Zone 6a. This drives everything about what you can reliably grow — it maps directly to how cold your winters get.

When is the last frost in Lowell?

The average last spring frost in Lowell is around April 22, and the first fall frost is typically October 15. Plan to move tender plants outside after April 22 and have them harvested (or protected) before October 15.

What grows well in Lowell?

Plenty — Lowell's USDA Zone 6a climate supports 30+ crops. Some of the easiest and most reliable here are Cherry Tomato, Chili Pepper, Cucumber.

How long is Lowell's growing season?

Lowell typically has around 158 frost-free days per year (roughly April 22 to October 15). That's a full season — plenty of time for most annual vegetables plus a succession or fall crop of cool-season greens.

What should I plant first in Lowell?

Go with fast-maturing crops to get a quick win while the season is short: Microgreens, Arugula, Radish are among the quickest from seed to harvest in Lowell.

Can I grow vegetables in containers in Lowell?

Yes — Lowell's climate is container-friendly for the right crops. Tomato, Cherry Tomato, Bell Pepper all do well in pots, which also lets you start them a little earlier and move them in on cold nights.

When should I start seeds indoors in Lowell?

For warm-season crops like Tomato, Cherry Tomato, Bell Pepper, start seeds indoors 6–8 weeks before your last frost (around April 22), then transplant after the danger of frost has passed.