Lettuce, Parris Island Cos illustration 🥬

🥬 Growing Lettuce, Parris Island Cos in Zone 10a

Zone 10a has a year-round growing season. Lettuce, Parris Island Cos can be planted almost any time with proper planning. Last frost: Feb 20. First frost: Dec 1.

Planting Calendar

Indoor
Outdoor
Harvest
Jan 9Dec 1

Season: Feb 20 – Dec 1 (284 days) · Succession: plant every 2 weeks (up to 15x)

Zone10a
Last FrostFeb 20
First FrostDec 1
Season Length284 days
Days to Harvest70
SunPart Sun / Part Shade
Frost ToleranceLight
Spacing4/sqft (6" apart)

When to Plant Lettuce, Parris Island Cos in Zone 10a

Start Seeds Indoors: Jan 9

Start Lettuce, Parris Island Cos seeds indoors around Jan 9 (6 weeks before last frost). Optimal germination temperature: 65°F. Germinates in 4–10 days.

Transplant Outdoors: Jan 30

Transplant Lettuce, Parris Island Cos seedlings outdoors after Jan 30. Wait until soil temperature reaches 40°F. Space plants at 4/sqft (6" apart). Harden off plants for a week before moving outside.

Harvest: Mar 6

First harvest approximately Mar 6 (~35 days from transplant). Continue harvesting until first frost (Dec 1).

Fall Planting: Oct 6

For a fall harvest, plant Lettuce, Parris Island Cos around Oct 6 (8 weeks before first frost).

Companion Planting

✅ Strawberries✅ Carrots✅ Beets✅ Cucumbers✅ Radishes

Plan Your Lettuce, Parris Island Cos Garden

Track Lettuce, Parris Island Cos from seed to harvest with personalized frost dates, watering recommendations, and companion planting visualization.

Start Free Lettuce, Parris Island Cos Growing Guide