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What Grows in Louisville, KY?

Louisville on the Ohio River has an excellent climate with warm summers and mild winters for Kentucky.

Zone

USDA 6b

Last frost

April 5

First frost

October 20

Frost-free days

178
Quick Answer

Louisville is in USDA Zone 6b with about 178 frost-free days, and you can grow tomatoes, peppers, sweet corn, beans, and more here.

Planting tips for Louisville

Warmest city in Kentucky. Plant warm crops after April 10. Ohio River Valley moderates temperatures.

What to plant, and when

Timing by your frost dates — last frost April 5, first frost October 20.

🌱 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 Louisville

USDA Zone 6b

Frequently asked questions

What hardiness zone is Louisville, KY in?

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

When is the last frost in Louisville?

The average last spring frost in Louisville is around April 5, and the first fall frost is typically October 20. Plan to move tender plants outside after April 5 and have them harvested (or protected) before October 20.

What grows well in Louisville?

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

How long is Louisville's growing season?

Louisville typically has around 178 frost-free days per year (roughly April 5 to October 20). 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 Louisville?

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 Louisville.

Can I grow vegetables in containers in Louisville?

Yes — Louisville'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 Louisville?

For warm-season crops like Tomato, Cherry Tomato, Bell Pepper, start seeds indoors 6–8 weeks before your last frost (around April 5), then transplant after the danger of frost has passed.