Zone 4b monthly plan
February planting calendar for zone 4b
These actions use zone 4b's typical frost dates and each crop's extension-sourced planting window.
- Last spring frost
- May 8
- First fall frost
- October 1
- Exact actions
- 11
Get dates for your exact ZIP
Zone averages cover wide areas. Your nearest NOAA station gives a more local frost window.
Source-backed actions
Your February checklist
Search a crop or narrow the list by garden action. Dates are shifted from zone 4b's typical frost window.
Showing 5 of 11 matching actions
Start indoors
11- Ageratum
flower
February 27 to March 13SourceUniversity of Wisconsin-Madison Division of Extension (Wisconsin Horticulture) - Broccoli
vegetable
February 27 to March 13SourceUtah State University Extension - Cabbage
vegetable
February 27 to March 13SourceUtah State University Extension - Celeriac
vegetable
February 13 to February 27SourceCornell University, Home Gardening (Vegetable Growing Guides) - Forget-me-not
flower
February 27 to March 13SourceNorth Carolina Extension Gardener Plant Toolbox (NC State Extension)
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.