Zone 9a monthly plan

December planting calendar for zone 9a

These actions use zone 9a's typical frost dates and each crop's extension-sourced planting window.

Last spring frost: March 2
First fall frost: November 26
Exact actions: 12

Get dates for your exact ZIP

Zone averages cover wide areas. Your nearest NOAA station gives a more local frost window.

Exact December dates

Planting jobs

Your December checklist

Search a crop or narrow the list by garden action. Dates are shifted from zone 9a's typical frost window.

12 matching actions, with 6 shown first

Start indoors

Ageratum
flower
December 22 to January 5
0 sources
Broccoli
vegetable
December 22 to January 5
0 sources
Cabbage
vegetable
December 22 to January 5
0 sources
Cauliflower
vegetable
December 29 to January 12
0 sources
Celeriac
vegetable
December 8 to December 22
0 sources

Show 6 more start indoors

Globe ArtichokeNovember 10 to December 15
ImpatiensDecember 22 to January 19
KaleDecember 15 to December 29
PetuniaDecember 22 to January 5
Sweet MarjoramDecember 22 to January 5
Wax BegoniaDecember 8

Fall planting

Garlic
vegetable
December 3 to December 10
0 sources

How this checklist is sourced

USDA defines the hardiness zone, NOAA normals provide the typical frost anchors, and each crop's extension source supplies the planting offset. Broad season-only notes are kept on plant profiles because they do not change from one zone page to another.

USDA Plant Hardiness Zone Map, 2023 by USDA Agricultural Research Service / Oregon State University PRISM Group. the USDA hardiness-zone band.
U.S. Climate Normals 1991-2020 by NOAA National Centers for Environmental Information. the median spring and fall freeze dates.

Local conditions vary.