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What Can Grow in Sitka, AK

Sitka's island location brings mild maritime temperatures year-round — one of the best Alaskan climates for gardening.

Sitka, AK is in USDA Hardiness Zone 7a. The growing season lasts about 140 days, with last frost around April 20 and first fall frost around October 5. Top crops include kale, lettuce, broccoli.

7aUSDA Zone
140 daysFrost-Free
April 20Last Frost
October 5First Frost
🌱 What Grows in Sitka
kalelettucebroccolicabbageroot vegetablesherbs
💡 Planting Tips

Maritime climate means cool summers — ideal for cool-season crops. Excellent for herbs.

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🔗 More Resources
📍 Full Zone 7a Guide 🌎 Alaska Planting Guide

Frequently Asked Questions

Sitka, AK is in USDA Plant Hardiness Zone 7a. Sitka's island location brings mild maritime temperatures year-round — one of the best Alaskan climates for gardening.

The average last spring frost in Sitka is around April 20. The first fall frost typically arrives around October 5, giving a frost-free growing season of approximately 140 days.

Sitka's Zone 7a climate supports growing kale, lettuce, broccoli, cabbage, root vegetables, herbs. Maritime climate means cool summers — ideal for cool-season crops. Excellent for herbs.

In Sitka, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of April 20. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.