When to Plant Peas in Alaska (2026 Guide)

Planting peas in Alaska can be a rewarding endeavor, particularly given their adaptability to cooler temperatures. With the median last spring frost date around May 26 and the first fall frost on September 10, the growing season may feel short, but it is perfectly suited for peas. As a cool-season crop, peas thrive when temperatures stay within the 50–70°F range, making them ideal for early planting in Alaska's unique climate.

Here in Zone 5a, with a frost-free growing season of approximately 107 days, careful planning is vital when sowing your peas. This variety of legumes has specific needs; they require cool soil for germination, ideally between 40–50°F. For gardeners in cities like Anchorage and Fairbanks, knowing when to plant is essential to reap a successful harvest. Peas can be direct sown as soon as the soil is workable, which is typically in late winter or early spring.

In Alaska's distinctive gardening climate, peas hold a special place as one of the first crops to be sown. As the weather begins to warm, sowing peas directly into the ground allows for rich, refreshing meals later in the season. To enjoy a steady crop before the peak summer heat arrives, it’s best to understand the timing of planting and harvesting. Making the right choices will ensure that your pea plants flourish amidst the rising temperatures.

Planting Schedule by USDA Zone in Alaska

Zone	Indoor start	Transplant out	Direct sow	Harvest
Zone 5a	Not recommended — direct sow only	Not recommended — direct sow only	Start March 15 – April 7, ~6–8 weeks before May 26	Harvest June 15 – September 1, ~70–80 days after sowing

Peas Planting Windows in Alaska

Indoor start: Not applicable due to the growing constraints specific to Alaska.
Transplant outdoors: Not applicable due to the growing constraints specific to Alaska.
Harvest: Expect to begin harvesting peas from June 15 – September 1.

Common Mistakes Growing Peas in Alaska

Many Alaska gardeners mistakenly try to start peas indoors, but this crop despises transplanting and should only be direct sown. Starting seeds indoors under artificial lights can lead to stunted growth and poor yields compared to directly sown plants.
Another common mistake is planting peas too late. Given Alaska's short growing season, failing to plant before the last frost date of May 26 can result in missed opportunities for harvest. It's crucial to sow peas early in the season to maximize productivity.
Overlooking soil temperature is another pitfall for gardeners in Alaska. Peas need soil temperatures between 40-50°F for germination. Planting too early, when the ground is still too cold, can lead to poor germination rates and delayed harvests.
Some gardeners in Alaska may assume they can plant peas during summer, but once temperatures rise above 80°F, pea vines tend to decline. Timing your planting to avoid summer heat is essential for a successful harvest.
Given Alaska's unique weather patterns, heavy spring rains can also disrupt planting schedules. Gardeners should monitor local forecasts and be prepared to plant once the soil is workable, avoiding delayed planting due to excessive wet conditions.

Frequently Asked Questions

What if I'm in a cold pocket of Alaska?

If you're in a colder area, pay close attention to the soil temperature and moisture levels. Wait until the soil has warmed adequately and is workable before planting. You can also start some varieties of peas earlier than others without compromising yield.

Can I still plant peas in May?

Yes, planting peas in early May is ideal, but make sure the soil is workable and temperatures are within the right range. If possible, check that the danger of frost has passed before sowing.

How do I know when to harvest my peas?

Harvest shelling peas when pods are plump and rounded, and bright green in color. For snap peas, check every two to three days for size; they should be full and round. Snow peas are best harvested when flat and before seeds develop.

What should I do if my pea plants are wilting?

If your pea plants are wilting, it might be due to high temperatures or lack of moisture. Ensure they are receiving adequate water, and consider providing shade if temperatures exceed 70°F to help them thrive.

Can I plant peas after I harvest them?

Once you harvest your pea plants, you can immediately prepare the bed for the next crop. Peas enrich the soil with nitrogen, so follow with nitrogen-hungry plants like corn or broccoli for optimal yields.