What Can Grow in Ketchikan, AK

Ketchikan is the warmest city in Alaska with a maritime climate ideal for cool-season vegetables.

Ketchikan, AK is in USDA Hardiness Zone 7a. The growing season lasts about 145 days, with last frost around April 10 and first fall frost around October 8. Top crops include kale, lettuce, broccoli.

7aUSDA Zone
145 daysFrost-Free
April 10Last Frost
October 8First Frost
🌱 What Grows in Ketchikan
kalelettucebroccolichardherbsroot vegetables
💡 Planting Tips

Very high rainfall — use raised beds. Mild temps year-round for Alaska standards.

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📍 Full Zone 7a Guide 🌎 Alaska Planting Guide

Frequently Asked Questions

Ketchikan, AK is in USDA Plant Hardiness Zone 7a. Ketchikan is the warmest city in Alaska with a maritime climate ideal for cool-season vegetables.

The average last spring frost in Ketchikan is around April 10. The first fall frost typically arrives around October 8, giving a frost-free growing season of approximately 145 days.

Ketchikan's Zone 7a climate supports growing kale, lettuce, broccoli, chard, herbs, root vegetables. Very high rainfall — use raised beds. Mild temps year-round for Alaska standards.

In Ketchikan, start with cool-season crops like lettuce, spinach, and broccoli a few weeks before the last frost date of April 10. Warm-season crops like tomatoes and peppers should go in after all frost risk has passed.