Zone 11 · Fruiting Veg Growing Guide

When to Plant Celery
in Zone 11

The most demanding crop in this guide — needs consistent moisture, steady cool temperatures, and a very long season. But homegrown celery has a depth of flavour you'll never find in a supermarket. Start early, be patient.

Plant outdoors
Oct – Dec
Start indoors
Direct sow
Last Frost
~none
Days to harvest
100–130 days
Difficulty
Hard
Wrong season — Zone 11
Harvest window: Dec – Mar

Planting Calendar

In Zone 11, Celery should be planted outdoors Oct – Dec, after the average last frost date of approximately none.

Very limited cool season. Only suitable in cooler Zone 11 microclimates.

Care Guide

Sunlight
Full sun to partial shade · 4–8 hrs/day
Watering
High
Spacing
8–10 inches
Soil
Rich, moisture-retentive, well-draining
Days to maturity
100–130 days
Soil pH
6.0–7.0
plant tip · Zone 11

Very limited cool season. Only suitable in cooler Zone 11 microclimates.

Feeding Schedule

How often
every 2 weeks
Feed type
high nitrogen
Key timing
throughout growing season

One of the heaviest feeders in the vegetable garden. Liquid feed every 2 weeks. Inconsistent feeding produces stringy, bitter stalks.

Companion Planting for Celery

What you plant next to celery makes a real difference — some plants actively help, others compete or attract pests.

Grows well with
  • Tomatoes
  • Brassicas
  • Beans
  • Leeks
Keep away from
  • Corn
  • Fennel
  • Parsnips

These guides get better when growers like you contribute. If something’s wrong or you’ve learned something worth sharing, we’d love to hear it.

What needs correcting?

What should it say?

Your zone (optional)

Thanks — we'll review this and update the guide if needed.

Your growing tip for Celery

Your name (optional)

Your zone (optional)

Tips are reviewed before publishing. Accepted tips earn you a Founding Grower badge when the plant app launches.

Thanks for contributing! We'll review your tip and be in touch before launch.

Common questions

In Zone 11, celery is a fall-planted crop. Plant outdoors Oct – Dec once temperatures cool in autumn. It overwinters and is ready to harvest around Dec – Mar. No last frost consideration — plant before the ground freezes.
Zone 11 has an average last spring frost of approximately none and a first fall frost around none. These dates vary by specific location — use your ZIP code in the plant app for precision based on the nearest NOAA weather station.
Good companion crops for celery include Tomatoes, Brassicas, Beans, Leeks. Avoid planting near Corn, Fennel, Parsnips, which can compete for nutrients or attract pests.
Celery typically takes 100–130 days from transplant or direct sow to harvest in Zone 11. Expected harvest window: Dec – Mar.

Free app · iOS February 2028

Track your Celery in plant

Get a live traffic light for every crop in your garden — zone-aware planting calendar, real-time weather alerts, and a community of growers near you.

Be first to back on Kickstarter and lock in the founding price.

Celery in other zones
Crop Guides