Zone 5b monthly plan

March planting calendar for zone 5b

These actions use zone 5b's typical frost dates and each crop's extension-sourced planting window.

Last spring frost: May 1
First fall frost: October 10
Exact actions: 37

Get dates for your exact ZIP

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

Exact March dates

Planting jobs

Your March checklist

Search a crop or narrow the list by garden action. Dates are shifted from zone 5b's typical frost window.

37 matching actions, with 7 shown first

Start indoors

Ageratum
flower
February 20 to March 6
0 sources
Annual Salvia (Scarlet Sage)
flower
March 6 to March 20
0 sources
Bachelors Button
flower
March 6 to March 20
0 sources
Basil
herb
March 6 to March 20
0 sources
Bok Choy
vegetable
March 20 to April 3
0 sources

Show 30 more start indoors

BroccoliFebruary 20 to March 6
CabbageFebruary 20 to March 6
CauliflowerFebruary 27 to March 13
CollardsMarch 6
CucamelonMarch 20 to April 3
EggplantMarch 6
FennelMarch 20 to April 3
Forget-me-notFebruary 20 to March 6
German ChamomileMarch 6 to March 20
Globe AmaranthMarch 6 to March 20
Ground CherryMarch 13 to April 3
ImpatiensFebruary 20 to March 20
LettuceMarch 20 to March 27
Luffa GourdMarch 6 to March 20
Malabar SpinachMarch 6 to March 20
MarigoldMarch 20 to April 3
MoonflowerMarch 20 to April 3
NasturtiumMarch 20 to April 3
ParsleyMarch 6 to March 20
PepperMarch 6
PetuniaFebruary 20 to March 6
RhubarbMarch 20
RomanescoMarch 20 to April 3
SpinachMarch 20 to March 27
StockMarch 6 to March 20
Sweet AlyssumMarch 20 to March 27
Sweet MarjoramFebruary 20 to March 6
Swiss ChardMarch 20 to March 27
TomatilloMarch 13 to April 3
TomatoMarch 20 to March 27

Transplant outdoors

Kale
vegetable
March 27 to April 3
0 sources

Direct sow

Kale
vegetable
March 27 to April 3
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.