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What Grows in Lehigh Valley, PA?

Lehigh Valley, Pennsylvania is in USDA Hardiness Zone 7a.

Zone

USDA 7a

Last frost

early March

First frost

late November

Frost-free days

258
Quick Answer

Lehigh Valley is in USDA Zone 7a with about 258 frost-free days.

What to plant, and when

Timing by your frost dates — last frost early March, first frost late November.

🌱 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 Lehigh Valley

USDA Zone 7a

Frequently asked questions

What hardiness zone is Lehigh Valley, PA in?

Lehigh Valley, PA is in USDA Hardiness Zone 7a. This drives everything about what you can reliably grow — it maps directly to how cold your winters get.

When is the last frost in Lehigh Valley?

The average last spring frost in Lehigh Valley is around early March, and the first fall frost is typically late November. Plan to move tender plants outside after early March and have them harvested (or protected) before late November.

What grows well in Lehigh Valley?

Plenty — Lehigh Valley's USDA Zone 7a climate supports 30+ crops. Some of the easiest and most reliable here are Cherry Tomato, Chili Pepper, Cucumber.

How long is Lehigh Valley's growing season?

Lehigh Valley typically has around 258 frost-free days per year (roughly early March to late November). 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 Lehigh Valley?

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 Lehigh Valley.

Can I grow vegetables in containers in Lehigh Valley?

Yes — Lehigh Valley'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 Lehigh Valley?

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