When to Plant in Bellingham, WA

Bellingham, Washington, is characterized by a growing season that stretches approximately 196 frost-free days, with the median last spring frost occurring on April 9 and the median first fall frost on October 22. This unique climate allows for a variety of plants to thrive, enabling local gardeners to optimize their planting schedules effectively.

The marine west coast climate features mild, wet winters and dry summers, creating a suitable environment for certain crops. Vegetables such as lettuce, kale, and peas flourish in the cooler, moist conditions during spring and fall, while warm-season crops like tomatoes may produce well during summer. However, crops that require extreme heat, such as melons and peppers, may struggle to reach full maturity given the cooler nighttime temperatures characteristic of the region.

What to plant now in Bellingham

In early spring, immediately after the last frost date of April 9, consider planting cool-season crops like peas, carrots, and lettuce. These crops thrive in the cooler temperatures before summer arrives.
As summer approaches, from late May to early June, it's the ideal time to sow warm-season vegetables such as tomatoes, cucumbers, and beans. Ensure that nighttime temperatures remain pleasantly mild before planting.
During the transition into fall, around mid-August to early September, plant a second round of cool-season crops such as kale and spinach. These crops will benefit from the remaining warmth of the summer before the frost date on October 22.
In late fall, particularly in October, as the chance of frost increases, focus on harvesting the last of your crops. Consider covering any remaining plants with frost cloths or moving pots indoors to protect from the impending frost.

In Bellingham (196 frost-free days, a long season), 30 of 56 planner crops fit outright, 25 get two plantings, 1 crop is perennial.

Month by month in Bellingham

Month	What to do
January	In January, focus on planning your garden layout for the upcoming spring. Start seeds indoors for hardy crops such as onions and leeks, ensuring you are prepared for the growing season ahead.
February	February is a good time to continue starting seeds indoors. Consider varieties like cabbage and broccoli, which grow well in Bellingham's climate and can be transplanted in early spring.
March	As the weather begins to warm up, prepare your garden beds for planting. Start hardening off seedlings and be ready to plant peas and radishes as spring approaches.
April	April marks the time to sow cool-season crops directly into the ground after the last frost date of April 9. Plant lettuce, carrots, and beets in prepared soil for an early harvest.
May	In May, the risk of frost is diminishing, making it an excellent time to transplant warm-season vegetables like tomatoes and peppers. Ensure that soil temperatures are warm enough to promote growth.
June	June is key for maintaining your garden as temperatures rise. Mulch to retain moisture and discourage weeds, while ensuring proper watering for growing crops like zucchini and corn.
July	July brings peak summer conditions. Continue to care for your warm-season crops, and consider planting a second succession of beans for an extended harvest. Be vigilant for pests and diseases.
August	As temperatures remain warm, late August is ideal for planting cool-season crops for the fall. Sow radishes and kale to make the most of the remaining warmth.
September	In September, prepare for the upcoming frost by harvesting your summer crops. Continue to plant more fall crops, allowing enough time before the first frost on October 22.
October	October is when you need to be vigilant as the first fall frost arrives around October 22. Harvest remaining crops and cover tender plants to protect them from cool nights.
November	November is primarily for cleaning up your garden. Remove old plants and prepare the soil for winter, while considering covering some beds with leaves or mulch.
December	In December, focus on indoor gardening or preparing for next season. It's a great time to research new varieties and plan your spring garden layout in advance.

Frost dates for Bellingham ZIP codes

ZIP	Last spring frost (50%)	First fall frost (50%)	Zone
98225	April 9	October 22	8b
98226	March 29	October 30	8a

FAQ

When is the last frost in Bellingham?

The last frost in Bellingham typically occurs around April 9, marking an important date for gardeners to begin planting their spring crops.

What vegetables grow best in Bellingham?

Vegetables such as lettuce, kale, and peas excel in Bellingham's climate. These crops prefer cooler temperatures and can take advantage of the marine west coast climate.

When should I plant tomatoes in Bellingham?

Tomatoes should be planted around late May to early June after the risk of frost has passed and soil temperatures are reliably warm.

Can I garden year-round in Bellingham?

While Bellingham has a mild climate, gardening year-round can be challenging. Cool-season crops can be grown in fall and mild winters, but there's generally less variety during darker months.

How does Plan My Garden help Bellingham gardeners?

Plan My Garden provides tailored planting calendars and helpful tips specific to Bellingham's unique climate, enabling local gardeners to optimize their gardening experiences.