What to Plant in December in Zone 9B
Based on a last frost date of Feb 15 for Zone 9B. 43 plants have activity this month.
Switch Zone
🏠 Start Indoors in December
Start these seeds inside under grow lights before the last frost.
Lavandula angustifolia
Start indoors: Dec 7
Transplant outdoors: Mar 1
~90 days to harvest
Capsicum annuum
Start indoors: Dec 7
Transplant outdoors: Mar 1
~75 days to harvest
Capsicum annuum
Start indoors: Dec 7
Transplant outdoors: Mar 1
~75 days to harvest
Capsicum annuum
Start indoors: Dec 7
Transplant outdoors: Mar 1
~80 days to harvest
Capsicum annuum
Start indoors: Dec 7
Transplant outdoors: Mar 1
~80 days to harvest
Echinacea purpurea
Start indoors: Dec 7
Transplant outdoors: Mar 1
~365 days to harvest
Cymbopogon citratus
Start indoors: Dec 7
Transplant outdoors: Mar 15
~100 days to harvest
Capsicum annuum
Start indoors: Dec 7
Transplant outdoors: Mar 1
~60 days to harvest
Impatiens walleriana
Start indoors: Dec 7
Transplant outdoors: Mar 1
~60 days to harvest
Salvia splendens
Start indoors: Dec 7
Transplant outdoors: Mar 1
~75 days to harvest
Artemisia dracunculus
Start indoors: Dec 21
Transplant outdoors: Mar 1
~60 days to harvest
Asparagus officinalis
Start indoors: Dec 21
Transplant outdoors: Mar 1
~730 days to harvest
Allium cepa var. aggregatum
Start indoors: Dec 21
Transplant outdoors: Mar 1
~90 days to harvest
Valeriana officinalis
Start indoors: Dec 21
Transplant outdoors: Mar 1
~365 days to harvest
Levisticum officinale
Start indoors: Dec 21
Transplant outdoors: Mar 1
~365 days to harvest
Aquilegia vulgaris
Start indoors: Dec 21
Transplant outdoors: Mar 1
~365 days to harvest
🌱 Direct Sow in December
Sow these seeds directly in the ground this month.
Want dates for your exact ZIP code?
Zone 9B is a range — enter your ZIP for pinpoint accuracy.
🔥 See What to Plant Right Now