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What Grows in Juneau, AK?

Juneau's coastal southeast Alaska location gives it surprisingly mild winters — the warmest USDA zone in the state.

Zone

USDA 7a

Last frost

April 15

First frost

October 1

Frost-free days

140
Quick Answer

Juneau is in USDA Zone 7a with about 140 frost-free days, and you can grow kale, lettuce, broccoli, cabbage, and more here.

Planting tips for Juneau

High rainfall — plant in raised beds for drainage. Long mild growing season for Alaska.

What to plant, and when

Timing by your frost dates — last frost April 15, first frost October 1.

🌱 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 Juneau

USDA Zone 7a

Frequently asked questions

What hardiness zone is Juneau, AK in?

Juneau, AK 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 Juneau?

The average last spring frost in Juneau is around April 15, and the first fall frost is typically October 1. Plan to move tender plants outside after April 15 and have them harvested (or protected) before October 1.

What grows well in Juneau?

Plenty — Juneau'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 Juneau's growing season?

Juneau typically has around 140 frost-free days per year (roughly April 15 to October 1). 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 Juneau?

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 Juneau.

Can I grow vegetables in containers in Juneau?

Yes — Juneau'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 Juneau?

For warm-season crops like Tomato, Cherry Tomato, Bell Pepper, start seeds indoors 6–8 weeks before your last frost (around April 15), then transplant after the danger of frost has passed.