Zone 11 · Alliums Growing Guide

When to Plant Spring Onion / Scallion
in Zone 11

Bunching onions harvested before they bulb up. Much easier than bulb onions — no day-length concerns, just direct sow and harvest in 60–80 days. Succession sow for year-round supply.

Plant outdoors
Oct – Feb
Start indoors
Direct sow
Last Frost
~none
Days to harvest
60–80 days
Difficulty
Easy
Late season — Zone 11
Harvest window: Nov – Apr

Planting Calendar

In Zone 11, Spring Onion / Scallion should be planted outdoors Oct – Feb, after the average last frost date of approximately none.

Cool season crop in Zone 11.

Care Guide

Sunlight
Full sun to partial shade · 4–8 hrs/day
Watering
Regular
Spacing
1–2 inches
Soil
Loose, well-draining, fertile
Days to maturity
60–80 days
Soil pH
6.0–7.0
plant tip · Zone 11

Cool season crop in Zone 11.

Feeding Schedule

How often
every 3 weeks
Feed type
balanced (10-10-10)
Key timing
throughout growing season

Light, consistent feeding produces tender green tops. Liquid feed every 3 weeks.

Succession Planting

Sow every 2 weeks

Sow every 2 weeks from early spring through summer. Spring onions are quick (60–80 days) and one of the best succession crops — a small row every 2 weeks keeps them coming all season.

Companion Planting for Spring Onion / Scallion

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

Grows well with
  • Carrots
  • Brassicas
  • Tomatoes
  • Beets
Keep away from
  • Beans
  • Peas
  • Asparagus

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Common questions

In Zone 11, spring onion / scallion is a fall-planted crop. Plant outdoors Oct – Feb once temperatures cool in autumn. It overwinters and is ready to harvest around Nov – Apr. 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 spring onion / scallion include Carrots, Brassicas, Tomatoes, Beets. Avoid planting near Beans, Peas, Asparagus, which can compete for nutrients or attract pests.
Spring Onion / Scallion typically takes 60–80 days from transplant or direct sow to harvest in Zone 11. Expected harvest window: Nov – Apr.

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Spring Onion / Scallion in other zones
Crop Guides