When to Plant Sage in Washington
Start Seeds Indoors
Friday, December 26, 2025
Transplant outdoors: Friday, March 6, 2026
State
Washington
USDA Zones
5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Avg Last Frost
Friday, February 20, 2026
Cities Covered
488
Washington Planting Schedule by Zone
Washington spans 9 zones — find yours below for the most accurate dates.
| Zone | Last Frost | Start Indoors | Transplant |
|---|---|---|---|
| 5b | Saturday, April 25, 2026 | Saturday, February 28, 2026 | Saturday, May 9, 2026 |
| 6a | Monday, April 20, 2026 | Monday, February 23, 2026 | Monday, May 4, 2026 |
| 6b | Wednesday, April 15, 2026 | Wednesday, February 18, 2026 | Wednesday, April 29, 2026 |
| 7a | Friday, April 10, 2026 | Friday, February 13, 2026 | Friday, April 24, 2026 |
| 7b | Sunday, April 5, 2026 | Sunday, February 8, 2026 | Sunday, April 19, 2026 |
| 8a | Friday, March 20, 2026 | Friday, January 23, 2026 | Friday, April 3, 2026 |
| 8b | Sunday, March 15, 2026 | Sunday, January 18, 2026 | Sunday, March 29, 2026 |
| 9a | Friday, February 20, 2026 | Friday, December 26, 2025 | Friday, March 6, 2026 |
| 9b | Tuesday, February 10, 2026 | Tuesday, December 16, 2025 | Tuesday, February 24, 2026 |
Dates based on average last frost. Check your local forecast before planting.
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Growing Sage in Washington: Complete Guide
Sage (Salvia officinalis) is a warm-season crop that needs a head start indoors before Washington's last frost. Most Washington gardeners begin seeds indoors around Friday, December 26, 2025 and move transplants outside around Friday, March 6, 2026, after the risk of frost has passed.
Because Washington stretches across 9 USDA hardiness zones (5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b), planting windows can shift by as much as six to eight weeks from one end of the state to the other. Gardeners in the warmer southern zones can start earlier, while those in cooler northern zones should wait until the zone table above shows their last frost has passed.
With 75 days to maturity, Sage needs the indoor head start that Washington's growing season requires. Starting indoors ensures you have strong transplants ready the moment outdoor conditions are right.
Sage requires full sun (6+ hours) and low to moderate moisture. Most of Washington receives adequate sunlight during the growing season, though gardeners in humid eastern regions should watch for fungal issues and ensure good air circulation.
For the most precise planting dates tailored to your exact location, enter your ZIP code on our planting calendar or use the zone table above to find the schedule for your area of Washington.
Frequently Asked Questions
When should I plant Sage in Washington?
In Washington, start Sage seeds indoors around Friday, December 26, 2025 and transplant outdoors around Friday, March 6, 2026 after your last frost. Washington spans zones 5b–9b, so dates shift by 1–4 weeks depending on where you live.
What is the last frost date in Washington?
Washington spans 9 USDA zones (5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b), so last frost dates vary by region. Boyds (5b) sees frost until around Saturday, April 25, 2026, while Tokeland (9b) is frost-free much earlier.
How long does Sage take to grow in Washington?
Sage takes about 75 days from transplant (or direct sow) to harvest. Starting seeds indoors in Washington gives you a head start so plants are ready to go out after the last frost.
What USDA zones does Washington cover for Sage?
Washington includes zones 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b. Sage grows well across all of these zones with adjusted timing — use the zone table above to find the right dates for your part of the state.
Find Precise Dates for Your City
Select a city for exact planting dates based on local frost records.