When to plant in Bothell East, WA
USDA Zone 8bEverything below — frost dates, hardiness zone, and what to plant when in Bothell East, Washington — is derived from the closest NOAA station with complete climate normals.
A generous ~253-day season lets Bothell East gardeners direct-sow more and still ripen long-maturity crops like melons and winter squash. Zone 8b means many perennials and even some tender shrubs overwinter in Bothell East, while your frost dates still decide when annuals go out.
Frost probability
EVERETT SNOHOMISH AP · 1991–2020The date the last spring and first fall frost occur, by threshold and probability. A 90% date is later in spring — and earlier in fall — than a 10% date; the 50% · 32°F row is what most gardeners plan around. These are Bothell East’s own odds, recorded at EVERETT SNOHOMISH AP.
| Threshold | SPRING 10% | SPRING 50% | SPRING 90% | FALL 10% | FALL 50% | FALL 90% |
|---|---|---|---|---|---|---|
| 36°F | Apr 27 | Apr 3 | Mar 15 | Oct 19 | Nov 2 | Nov 20 |
| 32°F | Mar 29 | Mar 9 | Feb 15 | Oct 31 | Nov 17 | Dec 7 |
| 28°F | Mar 9 | Feb 13 | Jan 1 | Nov 15 | Dec 6 | Jan 8 |
Download this table as CSV ↓ — every threshold and probability, plus this city’s planting-window dates.
What to plant now
TODAY · JULY 19Full-year planting calendar
Each bar is the exact window to take a planting action in Bothell East, drawn to the day from the local frost dates. The dashed line is today.
Nearby weather stations
3 within 15 km · complete 32°F normalsWhen stations disagree by more than a few days, that spread is real microclimate variation — elevation, water, urban heat. Judge which station best matches your own yard.
Bothell East planting FAQ
When is the last spring frost in Bothell East, WA?
Bothell East's average last spring frost falls near March 9 — the 50% mark at 32°F in the 1991–2020 normals. Hold tender transplants until the risk has passed, then plant out.
When is the first fall frost in Bothell East, WA?
The first fall frost in Bothell East typically arrives around November 17 (50% probability at 32°F). Harvest or protect frost-sensitive crops before then.
What hardiness zone is Bothell East in?
Bothell East is in USDA hardiness zone 8b. In zone 8b, winters are mild — many tender perennials overwinter here.
How long is the growing season in Bothell East?
There are roughly 253 frost-free days in Bothell East (a long growing season), running from the average last frost around March 9 to the first fall frost near November 17.
When should I plant tomatoes in Bothell East?
In Bothell East, start tomato seeds indoors around January 12–January 26, then transplant seedlings outdoors around March 16 once the danger of frost has passed.
Never miss a window in Bothell East
An email when it’s time to start seeds, transplant, and sow — timed to Bothell East’s frost dates. Double opt-in, one-click unsubscribe, no spam.
Nearby cities
8 within reach- Mill Creek East · 3 km
- Bothell · 4 km
- Bothell West · 4 km
- Martha Lake · 6 km
- Maltby · 6 km
- Woodinville · 6 km
- Alderwood Manor · 6 km
- Mill Creek · 7 km
Frost dates recorded at EVERETT SNOHOMISH AP, 13 km from the city center · 1991–2020 NOAA climate normals · zone from the USDA/PRISM 2023 map. How we compute this.
BlissGarden. "When to Plant in Bothell East, WA — Frost Dates & Zone 8b." Frost normals: NOAA NCEI U.S. Climate Normals 1991–2020, station USW00024222. Retrieved from https://blissgarden.com/washington/bothell-east.