Quick planting window
| Start indoors | Not recommended; sow seeds directly instead |
|---|---|
| Transplant | Not recommended; sow seeds directly to avoid root disturbance |
| Sow seeds | April to May |
| Estimated harvest | June to July |
| Risk | Low risk |
Month calendar
Scan the year by month to see seed starting, sowing, transplanting, and harvest timing.
Carrot is a reasonable spring choice for Washington if you adjust for your local microclimate.
Next: ZIP code personalization
This is a state-level planning window based on typical frost timing and crop rules. Use local Extension guidance or a ZIP code frost-date tool before planting.
Planning notes
Days to maturity
70
Covered states
Washington
Frost window
April to May / October to November
Adjust for the Cascades: east and west of the mountains often need different timing.
Carrot growing notes
The calendar window is only the first step. These growing details affect survival, plant vigor, and harvest quality.
Sun
Full sun to light shade.
Soil
Deep, loose, stone-free soil.
Spacing
Thin seedlings to 2-3 inches.
Container
Use deep containers, ideally 10-12+ inches.
Watering
Keep the top layer moist until germination.
Common mistake
Letting the seedbed dry out before seeds sprout.
Beginner tip
Cover lightly and be patient; germination can be slow.
Month window table
| Crop | Spring transplant / sow | Spring harvest | Fall transplant / sow | Fall harvest |
|---|---|---|---|---|
| Carrot | April to May | June to July | August to September | October to November |
Sources and limits
This page uses Washington state-level frost windows, USDA zone ranges, and crop rules for planning. It does not replace local Extension or county-level guidance.
FAQ
When should I start carrot seeds indoors in Washington?
Carrot is usually not started indoors. Sow outdoors in the recommended window instead.
When should I transplant carrot in Washington?
Carrot is usually better sown outdoors because transplanting can disturb the roots.
Can I sow carrot outdoors in Washington?
Yes. The spring outdoor sowing window is about April to May, assuming soil and night temperatures are suitable.
When can I harvest carrot in Washington?
Spring planting estimates a harvest around June to July; fall planting estimates about October to November. Variety and weather can shift this by several weeks.
Is carrot risky in Washington?
Carrot is a reasonable spring choice for Washington if you adjust for your local microclimate. For fall: Carrot is a reasonable fall choice for Washington if you adjust for your local microclimate.
Do local differences inside Washington matter?
Adjust for the Cascades: east and west of the mountains often need different timing. Treat this as a state-level starter window and confirm with a local Extension or frost-date tool before planting.
What growing details matter most for carrot?
Full sun to light shade. Deep, loose, stone-free soil. Common mistake: Letting the seedbed dry out before seeds sprout.
Is this ZIP-code accurate?
No. This page uses state-level windows; ZIP-code frost dates, USDA zone matching, and reminder calendars are planned for the next phase.