Alaska · zones 3a–8a
When to plant bell peppers in Alaska.
Sow or transplant between May 28 to Jun 23 in a typical year, keyed to Alaska's median last frost around May 12. Dates below are state medians; your ZIP code shifts them by days to weeks.
The 2026 windows
Bell Peppers dates for a typical Alaska season.
1 · Start indoors
Apr 16 to May 12
About 6 weeks before set-out. Warm spot, real light.
2 · Set out
May 28 to Jun 23
Keyed to the ~May 12 last frost. Sow 0.25" deep, 18" apart.
Harvest
~70 days later
~4 lb per plant over ~8 weeks.
Alaska spans more than one climate: Zone 3 is the most common zone, but the state runs 3a to 8a. That's why the planner works from your ZIP code's frost dates, not your zone: mountain and coastal gardens in the same state can be three weeks apart.
In Alaska: watch for
The pests that find bell peppers here.
The short season here, about 126 frost-free days, keeps pepper, bell in front of aphids only briefly. One early row cover usually carries a planting through the worst of it.
Clusters on new growth, sticky leaves, curling tips. Green peach aphid spreads virus.
Organic fix: Blast with water, then insecticidal soap or neem.
Bacterial leaf spot
Small water-soaked spots that turn brown; badly spotted leaves drop.
Organic fix: Plant resistant varieties, avoid overhead watering, rotate out of nightshades.
Plant wilts and collapses at the soil line after a bed stays soggy.
Organic fix: Plant on raised ground for drainage; remove collapsed plants and do not replant there.
Tiny shot-hole pits peppering young leaves.
Organic fix: Row cover the seedlings; healthy transplants outgrow the damage.
Your season math: Alaska gives bell peppers about 126 frost-free days, and it needs roughly 70 days to a first harvest. It's a one-planting crop, so time that single sowing well.
Planting bell peppers in Alaska: questions
When should I plant bell peppers in Alaska?+
In a typical Alaska year, sow bell peppers or set out transplants between May 28 to Jun 23, keyed to the state's median last frost around May 12. Your exact dates shift with your ZIP code and microclimate.
When do I start bell peppers seeds indoors in Alaska?+
Start seeds inside about 6 weeks before set-out: roughly Apr 16 to May 12 for a typical Alaska season.
What USDA zone is Alaska?+
Alaska spans zones 3a–8a, mostly zone 3. But frost dates, not zones, set planting time. The free planner uses your ZIP code's actual frost dates.
How many bell peppers plants do I need?+
Depends who you're feeding. The crop page has exact counts per household size, or the free planner does the math for your family in about 60 seconds.