When to plant · 31 cities · zones 7a–9a
When to plant carrots in Washington
Direct sow nantes carrot around Mar 31 — the Washington statewide median, counted from a last spring frost of Apr 14 across 597 ZIP codes and 156 NOAA stations.
The rule: Direct sow two weeks before the last frost and keep the top half-inch of soil damp for the 14–21 days it takes to germinate.
Washington carrots, by step
Statewide median last frost Apr 14, first fall frost Oct 25, 2027 season. Each cultivar's own indoor lead time and days to maturity, same engine as the Plan Builder.
| Cultivar | Start indoors | Sow | First harvest | Days |
|---|---|---|---|---|
| Nantes CarrotScarlet Nantes | Direct sow | Mar 31 | Jun 9 | 70 from sow |
Tight means first harvest lands within two weeks of the median first fall frost. Statewide dates are the ZIP-weighted median of every NOAA 1991–2020 station Washington's ZIP codes resolve to; 5 of 602 ZIPs have no datable freeze and are left out.
Carrots in Washington, city by city
Nantes Carrot, scheduled from each city's nearest NOAA station — the same dates as its frost page.
| City | Last frost | Sow | First harvest |
|---|---|---|---|
| Seattlezone 9a | Mar 13 | Feb 27 | May 8 |
| Spokanezone 7a | Apr 26 | Apr 12 | Jun 21 |
| Tacomazone 8b | Mar 8 | Feb 22 | May 3 |
| Vancouverzone 8b | Mar 29 | Mar 15 | May 24 |
| Bellevuezone 9a | Mar 8 | Feb 22 | May 3 |
| Kentzone 8b | Mar 20 | Mar 6 | May 15 |
| Everettzone 8b | Mar 24 | Mar 10 | May 19 |
| Spokane Valleyzone 7a | Apr 26 | Apr 12 | Jun 21 |
| Rentonzone 9a | Mar 13 | Feb 27 | May 8 |
| Federal Wayzone 8b | Mar 8 | Feb 22 | May 3 |
| Yakimazone 7a | Apr 8 | Mar 25 | Jun 3 |
| Bellinghamzone 8b | Apr 1 | Mar 18 | May 27 |
| Kirklandzone 9a | Mar 8 | Feb 22 | May 3 |
| Kennewickzone 7b | Mar 28 | Mar 14 | May 23 |
| Auburnzone 8b | Mar 20 | Mar 6 | May 15 |
| Redmondzone 8b | Mar 8 | Feb 22 | May 3 |
| Pascozone 7b | Mar 28 | Mar 14 | May 23 |
| Marysvillezone 8b | Mar 24 | Mar 10 | May 19 |
| Sammamishzone 8b | Mar 30 | Mar 16 | May 25 |
| Shorelinezone 9a | Mar 8 | Feb 22 | May 3 |
| Richlandzone 7b | Apr 6 | Mar 23 | Jun 1 |
| Lakewoodzone 8b | Mar 8 | Feb 22 | May 3 |
| Laceyzone 8b | Apr 29 | Apr 15 | Jun 24 |
| Olympiazone 8b | Apr 29 | Apr 15 | Jun 24 |
| Burienzone 9a | Mar 2 | Feb 16 | Apr 27 |
| Bothellzone 8b | Mar 8 | Feb 22 | May 3 |
| Bremertonzone 8b | Mar 29 | Mar 15 | May 24 |
| Edmondszone 9a | Mar 9 | Feb 23 | May 4 |
| Puyallupzone 8b | Apr 11 | Mar 28 | Jun 6 |
| Lynnwoodzone 9a | Mar 9 | Feb 23 | May 4 |
| Lake Stevenszone 8b | Mar 24 | Mar 10 | May 19 |
What Washington carrots need
Scarlet Nantes Carrot Seed
The carrot that makes a fermented habanero sauce work. It brings sweetness and body so the sauce has texture without thickener and heat without being one-dimensional.
Organic Seed Starter Potting MixMust have
Seed-starting mix is not potting soil with a nicer label — it is finer, lighter, and low in nutrients on purpose, because a seedling's first roots want air and moisture, not fertiliser.
Ocean Forest Potting SoilMust have
Pre-charged with enough nutrition to carry a transplant for its first month without feeding, which is exactly the window when most container plants stall.
5-Gallon Fabric Grow Bags, 5-Pack
Fabric pots air-prune roots and drain faster than a plastic pot can, which is the entire reason container tomatoes fail. Five gallons is the honest minimum for a pepper; a tomato wants ten.
Rapitest Soil Test Kit
In-ground growers are guessing until they test. pH outside 6.0–6.8 locks nutrients out no matter how much fertiliser you add, and no amount of feeding fixes that.
3-in-1 Soil Moisture / Light / pH Tester
Used for one thing — is the root zone actually dry six inches down — it prevents both halves of the most common container failure. Ignore the pH scale on it entirely.
Garden Harvest Basket with Tool Caddy
A harvest basket that doubles as a colander means the hose rinse happens in the garden, and the dirt stays outside. On a 20-pound tomato day that is a genuine time saving.
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Carrots in Washington: questions
When should I plant carrots in Washington?
Direct sow around Mar 31 at the statewide median; across the state that date runs from Feb 22 in the warmest tenth of Washington's ZIP codes to Apr 29 in the coldest. To cut the freeze risk to one year in ten, count from May 5 instead of the median last frost. Use the city table for your own town.
When is the last frost in Washington?
The ZIP-weighted median of NOAA 1991–2020 station medians is Apr 14. In the warmest tenth of Washington's ZIP codes the median last frost falls on or before Mar 8; in the coldest tenth, on or after May 13.
When will Washington carrots be ready to harvest?
Nantes Carrot planted on the statewide date is ready around Jun 9: 70 days from sow.
More for Washington
- When to plant tomatoes
- When to plant peppers
- When to plant tomatillos
- When to plant basil
- When to plant onions
- When to plant cilantro
- When to plant mustard greens
Carrots in every state → · Washington frost dates → · How frost-date math works →