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What Grows in Aurora, CO?

Aurora shares Denver's climate with similar growing conditions at the urban edge of the Front Range.

Zone

USDA 6a

Last frost

May 7

First frost

September 28

Frost-free days

155
Quick Answer

Aurora is in USDA Zone 6a with about 155 frost-free days, and you can grow tomatoes, peppers, beans, root vegetables, and more here.

Planting tips for Aurora

Same conditions as Denver. Raised beds and urban heat island create slightly warmer conditions.

What to plant, and when

Timing by your frost dates — last frost May 7, first frost September 28.

🌱 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 Aurora

USDA Zone 6a

Frequently asked questions

What hardiness zone is Aurora, CO in?

Aurora, CO 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 Aurora?

The average last spring frost in Aurora is around May 7, and the first fall frost is typically September 28. Plan to move tender plants outside after May 7 and have them harvested (or protected) before September 28.

What grows well in Aurora?

Plenty — Aurora'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 Aurora's growing season?

Aurora typically has around 155 frost-free days per year (roughly May 7 to September 28). 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 Aurora?

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 Aurora.

Can I grow vegetables in containers in Aurora?

Yes — Aurora'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 Aurora?

For warm-season crops like Tomato, Cherry Tomato, Bell Pepper, start seeds indoors 6–8 weeks before your last frost (around May 7), then transplant after the danger of frost has passed.