When to Plant in Auburn, WA

Auburn, Washington, experiences a last spring frost around April 19 and a first fall frost by October 20, providing approximately 198 frost-free days for gardening enthusiasts. This climate allows for a variety of planting, but timing is crucial to ensure your crops thrive. Gardeners should keep an eye on local forecasts as frost can still occur around these dates, and managing your planting schedule can significantly impact your yield.

The marine west coast climate in Auburn features mild, wet winters and dry summers, which supports a diverse range of crops. Vegetables like kale, lettuce, and broccoli thrive exceptionally well due to the cool, moist conditions. Conversely, heat-loving plants like peppers and tomatoes may struggle to reach their full potential, particularly if planted too early in the season before the threat of frost has passed.

What to plant now in Auburn

Spring: Start sowing hardy crops like peas and spinach indoors from late March; transplant outdoors after April 10 for optimal growth.
Summer: Mid to late June is perfect for planting cucumbers and squash as frost risk has passed, allowing these heat-loving crops to flourish.
Fall: In early September, sow cool-weather crops like turnips and carrots to harvest before the first frost on October 20, ensuring a bountiful fall garden.
Winter: Although winter slows growth, consider planting cover crops in November to enrich the soil and prevent erosion during the cold months.

In Auburn (184 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 Auburn

Month	What to do
January	January in Auburn is cold and often damp, making it an ideal time to plan your garden. Start ordering seeds and preparing garden tools for the upcoming planting season.
February	This month, the weather remains chilly, but you can begin pre-sowing seeds indoors for early spring crops such as onions and leeks, preparing for the last frost around April 19.
March	In March, start sowing seed indoors for crops like tomatoes and peppers. As the temperature begins rising, gardeners should prepare beds for planting post-April 10.
April	April brings the last frost date around April 19. After this date, you can safely transplant seedlings outdoors. Direct sow cool crops like peas and lettuce now that risk of frost has decreased.
May	May is when the frost is no longer a concern. Begin planting warm-weather crops like beans and corn directly in the garden to take advantage of the growing season.
June	June marks the arrival of warm weather. It's a great time for planting heat-loving vegetables such as cucumbers and zucchinis, which will flourish in Auburn's summer climate.
July	In July, maintain your garden by watering regularly and checking for pests. You can also start sowing fall crops like late-season radishes, given the extended growth period.
August	August is the time to start planning for fall planting. Consider direct sowing turnips and beets by mid-month to prepare for the fall harvest before October 25.
September	Early September is suitable for planting cooler crops. As temperatures start to drop, sow varieties such as kale and spinach that will thrive in the remaining warm days.
October	As we approach October 20, the first fall frost typically arrives. Focus on harvesting the remaining veggies and consider winterizing your garden to protect perennials.
November	With winter setting in, November is a time for rest and preparation. Think about adding organic matter to the soil and planting cover crops to prepare for spring.
December	December is cold, and gardening is limited. Use this time for planning the next year’s garden layout and reflecting on the successes and challenges of the last growing season.

Frost dates for Auburn ZIP codes

ZIP	Last spring frost (50%)	First fall frost (50%)	Zone
98092	April 19	October 20	8b

FAQ

When is the last frost in Auburn?

The last frost in Auburn typically occurs around April 19, meaning it's crucial to plan your crops around this date to avoid frost damage.

What vegetables grow best in Auburn?

In Auburn's climate, cool-season vegetables like kale, lettuce, and broccoli thrive, benefiting from the mild winters and ample moisture.

When should I plant tomatoes in Auburn?

Tomatoes should be transplanted outdoors after the last frost date of April 19, ideally in late May for optimal growth during the warm summer months.

Can I garden year-round in Auburn?

While Auburn has a mild climate, gardening year-round can be challenging. However, cold-tolerant crops like kale can be grown through winter with proper care.

How does Plan My Garden help Auburn gardeners?

Plan My Garden provides tailored planting calendars and advice based on local frost dates, helping Auburn gardeners maximize their yields and plan effectively.