What Grows in Harrisburg, PA?
Harrisburg, Pennsylvania is in USDA Hardiness Zone 7a.
Zone
Last frost
First frost
Frost-free days
Harrisburg 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.
Tomato, Cherry Tomato, Bell Pepper, Chili Pepper, Cucumber, Zucchini, Eggplant, Pumpkin
Lettuce, Spinach, Kale, Broccoli, Carrot, Radish, Beets, Onion
Green Beans, Potato, Sweet Potato, Corn, Microgreens, Rhubarb
Garlic
What grows well in Harrisburg
Tomato
Grows well
Cherry Tomato
Grows well
Bell Pepper
Grows well
Chili Pepper
Grows well
Cucumber
Grows well
Zucchini
Grows well
Green Beans
Grows well
Lettuce
Grows well
Spinach
Grows well
Kale
Grows well
Broccoli
Grows well
Carrot
Grows well
Radish
Grows well
Beets
Grows well
Onion
Grows well
Garlic
Grows well
Potato
Grows well
Sweet Potato
Grows well
Corn
Grows well
Peas
Grows well
Cabbage
Grows well
Brussels Sprouts
Grows well
Eggplant
Grows well
Swiss Chard
Grows well
Arugula
Grows well
Microgreens
Grows well
Pumpkin
Grows well
Leek
Grows well
Asparagus
Grows well
Rhubarb
Grows wellFrequently asked questions
What hardiness zone is Harrisburg, PA in?
Harrisburg, 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 Harrisburg?
The average last spring frost in Harrisburg 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 Harrisburg?
Plenty — Harrisburg'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 Harrisburg's growing season?
Harrisburg 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 Harrisburg?
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 Harrisburg.
Can I grow vegetables in containers in Harrisburg?
Yes — Harrisburg'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 Harrisburg?
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.