🌱 Free USDA zone, frost dates & planting calendar, by ZIP About & data sources
My Planting Zone know your zone

Plant Basil in Zone 10b

Seed-starting, transplant & harvest dates for USDA Zone 10b

Start indoors
Dec 4
Transplant
Jan 29
Direct sow
Jan 29
Harvest (~60d)
Mar 30

In Zone 10b, the average last spring frost is around January. Basil is a tender crop, so give it a head start indoors about 6 weeks before that, then move it out after frost danger passes.

Last spring frost
Jan 15
First fall frost
Dec 31
Growing season
350 days

Full Basil grow guide → · All crops for Zone 10b →

Frequently asked questions

When should I start basil in Zone 10b?

Start basil seeds indoors around Dec 4 (Zone 10b).

Can I direct sow basil in Zone 10b?

Yes, direct sow around Jan 29.