Zone 4b monthly plan

August 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: 15

Get dates for your exact ZIP

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

Exact August dates

Planting jobs

Your August checklist

Search a crop or narrow the list by garden action. Dates are shifted from zone 4b's typical frost window.

15 matching actions, with 10 shown first

Fall planting

Cabbage
vegetable
July 23 to August 27
0 sources
Cauliflower
vegetable
July 23 to August 27
0 sources
Kale
vegetable
July 30 to September 3
0 sources
Kohlrabi
vegetable
July 9 to August 6
0 sources
Lettuce
vegetable
July 2 to August 6
0 sources

Show 2 more fall planting

RutabagaJuly 30 to August 6
SpinachJuly 23 to August 27

Harvest

Carrot
vegetable
June 26 to August 2
0 sources
Fennel
herb
July 7 to August 6
0 sources
Parsnip
vegetable
July 26 to August 22
0 sources
Pumpkin
vegetable
July 17 to September 19
0 sources
Romanesco
vegetable
July 22 to August 16
0 sources

Show 3 more harvest

Sweet CornJuly 7 to August 20
TomatilloJuly 14 to August 5
WatermelonAugust 1 to August 20

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.