When to Plant in Tacoma, WA

In Tacoma, the growing season is shaped by a median last spring frost date of April 10 and a median first fall frost date of October 25, providing gardeners with approximately 198 frost-free days. This timeframe represents a unique opportunity to cultivate a variety of plants, allowing for both spring and fall harvests amid the region's temperate climate.

The marine west coast climate, characterized by mild, wet winters and dry summers, favors certain crops while challenging others. Crops such as kale, lettuce, and peas thrive due to the cool, damp spring conditions, while heat-loving crops like tomatoes and peppers can struggle with the cooler temperatures early in the season, often requiring careful planning to ensure adequate warmth as they mature.

What to plant now in Tacoma

Spring: Now is the time to plant cool-season crops such as peas and spinach as the risk of frost diminishes after April 10. Start seeds indoors for tomatoes and peppers to set them out after the last frost.
Summer: As the warm weather sets in, plant heat-loving crops like beans and squash. This is peak growing time, so maintain regular watering and weeding to ensure robust growth.
Fall: Begin planting fall crops like broccoli and Brussels sprouts to harvest before the first frost on October 25. This timing allows ample growth during the warm autumn days.
Winter: While outdoor planting is limited, it’s a great time to plan for next year’s garden. Consider starting a winter vegetable garden under cover to grow crops like winter kale or preparing indoor seed trays.

In Tacoma (198 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 Tacoma

Month	What to do
January	January is a time of rest for your garden, but it's also perfect for planning your planting layout and seed varieties. Consider starting a journal to track your gardening successes and challenges.
February	As winter continues, February is suitable for starting seeds indoors, particularly for plants like peppers and tomatoes that require a longer growing period. Check supplies for seed starting.
March	March invites the first outdoor planting opportunities. You can start sowing cool-season crops like peas and lettuce outdoors while continuing to nurture seedlings indoors.
April	April is a transition month, heralding the last frost by April 10. Ensure frost-sensitive plants are protected, and sow more outdoor vegetables like carrots and radishes as temperatures rise.
May	By May, the risk of frost is significantly reduced. Transplant tomatoes and peppers that were started indoors, and maintain regular watering to help them establish strong roots.
June	June brings warmth, making it ideal to plant summer crops such as zucchini and corn. Regularly monitor for pests and water appropriately during hot spells.
July	July is peak growing season, necessitating consistent watering and pest control. Consider planting a second crop of beans and watch for early signs of diseases in your garden.
August	As summer wanes, early August is the perfect time to plant for fall harvests. Sow seeds for brassicas like broccoli, and prepare beds for fall crops like beets.
September	In September, safeguard your fall crops as the temperatures begin to cool. Plant garlic for next spring and monitor for pests that are drawn to ripening crops.
October	October's chill sets in, with the first frost expected by October 25. Harvest any remaining warm-season crops and start preparing soil for winter cover crops.
November	November marks a time for cleanup, removing dead plants to prevent disease over winter. This is also the perfect time to plan your next year's garden strategy and order seeds.
December	December is the season of dormancy, but there are still indoor gardening tasks. Consider growing herbs in pots indoors and reflect on your previous year's gardening lessons.

Frost dates for Tacoma ZIP codes

ZIP	Last spring frost (50%)	First fall frost (50%)	Zone
98404	April 10	October 25	8b
98444	April 10	October 25	8b
98466	April 10	October 25	8b
98405	April 10	October 25	8b
98406	April 10	October 25	8b
98422	April 10	October 25	8b

FAQ

When is the last frost in Tacoma?

The last frost in Tacoma typically occurs around April 10, marking an important date for gardeners to start planting summer crops.

What vegetables grow best in Tacoma?

Best vegetables for Tacoma include kale, peas, and lettuce, which thrive in mild temperatures. Crops requiring heat like tomatoes may need extra attention.

When should I plant tomatoes in Tacoma?

Tomatoes should be planted after the last frost on April 10, ideally by late May to ensure warm soil for optimal growth.

Can I garden year-round in Tacoma?

While the outdoor growing season is limited, you can use greenhouses or row covers to extend your gardening into the winter months.

How does Plan My Garden help Tacoma gardeners?

Plan My Garden provides tailored advice, calendar tools, and regional planting information to help Tacoma gardeners maximize their growing potential.