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.

Mar 31Direct sowFeb 22 – Apr 29 across the state
Apr 14Last spring frostmedian · 1 in 10 years after May 5
Jun 9First harvest70 days from sow

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.

CultivarStart indoorsSowFirst harvestDays
Nantes CarrotScarlet NantesDirect sowMar 31Jun 970 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.

CityLast frostSowFirst harvest
Seattlezone 9aMar 13Feb 27May 8
Spokanezone 7aApr 26Apr 12Jun 21
Tacomazone 8bMar 8Feb 22May 3
Vancouverzone 8bMar 29Mar 15May 24
Bellevuezone 9aMar 8Feb 22May 3
Kentzone 8bMar 20Mar 6May 15
Everettzone 8bMar 24Mar 10May 19
Spokane Valleyzone 7aApr 26Apr 12Jun 21
Rentonzone 9aMar 13Feb 27May 8
Federal Wayzone 8bMar 8Feb 22May 3
Yakimazone 7aApr 8Mar 25Jun 3
Bellinghamzone 8bApr 1Mar 18May 27
Kirklandzone 9aMar 8Feb 22May 3
Kennewickzone 7bMar 28Mar 14May 23
Auburnzone 8bMar 20Mar 6May 15
Redmondzone 8bMar 8Feb 22May 3
Pascozone 7bMar 28Mar 14May 23
Marysvillezone 8bMar 24Mar 10May 19
Sammamishzone 8bMar 30Mar 16May 25
Shorelinezone 9aMar 8Feb 22May 3
Richlandzone 7bApr 6Mar 23Jun 1
Lakewoodzone 8bMar 8Feb 22May 3
Laceyzone 8bApr 29Apr 15Jun 24
Olympiazone 8bApr 29Apr 15Jun 24
Burienzone 9aMar 2Feb 16Apr 27
Bothellzone 8bMar 8Feb 22May 3
Bremertonzone 8bMar 29Mar 15May 24
Edmondszone 9aMar 9Feb 23May 4
Puyallupzone 8bApr 11Mar 28Jun 6
Lynnwoodzone 9aMar 9Feb 23May 4
Lake Stevenszone 8bMar 24Mar 10May 19

What Washington carrots need

SeedsThe cultivar decides the sauce. Everything downstream is damage control.
  • 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.

StartSoil temperature and light intensity, indoors, weeks before your frost date.
  • 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.

GrowRoot volume, nutrition and structure. Where most home crops actually fail.
  • 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.

HarvestTiming, handling, and weighing what you actually got.
  • 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

Carrots in every state → · Washington frost dates → · How frost-date math works →