🥬 When to Plant Celery

When should I plant celery?

Plant celery outdoors 4 weeks before last frost. For a head start, start seeds indoors 10 weeks before your area's last frost date.

Is celery frost sensitive?

Celery can tolerate light frost, surviving temperatures as low as 40°F. This makes it a great candidate for early spring or fall planting when other crops can't go out yet.

What temperature does celery need?

Celery grows best between 55°F and 70°F. It can survive down to 40°F, but growth slows significantly below 55°F. It prefers cool weather and may bolt or stop producing if summer heat arrives early.

How long does celery take to grow?

Celery typically takes 80–120 days from transplant (or direct sow) to first harvest. This is a long-season crop — start seeds early enough to ensure harvest before your area's first fall frost.

Should I start celery seeds indoors?

Yes — start celery seeds indoors 10 weeks before your area's last expected frost date. This gives seedlings time to develop strong roots before outdoor conditions are ready.

Is it too cold to plant celery?

It is too cold to plant Celery outdoors when nighttime temperatures are falling below 40°F. While Celery can tolerate temperatures as low as 40°F, growth will be slow until nights consistently exceed 55°F. Use CanIPlant to check your local 7-day forecast and get a real-time answer for your ZIP code.

Is it too hot to plant celery?

Celery starts to struggle when temperatures climb above 70°F. As a cool-season crop, Celery is especially heat-sensitive — high temperatures cause bolting, bitter flavor, or complete crop failure. Avoid planting in the peak of summer and opt for spring or fall instead. CanIPlant checks your local forecast highs to flag this automatically.

Any tips for growing celery?

Needs long cool growing season. Start indoors early.