Plant Basil in Zone 10a
Seed-starting, transplant & harvest dates for USDA Zone 10a
Start indoors
Dec 20
Transplant
Feb 14
Direct sow
Feb 14
Harvest (~60d)
Apr 15
In Zone 10a, 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 31
First fall frost
Dec 20
Growing season
323 days
Full Basil grow guide → · All crops for Zone 10a →
Frequently asked questions
When should I start basil in Zone 10a?
Start basil seeds indoors around Dec 20 (Zone 10a).
Can I direct sow basil in Zone 10a?
Yes, direct sow around Feb 14.