Zone 6b monthly plan

March planting calendar for zone 6b

These actions use zone 6b's typical frost dates and each crop's extension-sourced planting window.

Last spring frost: April 23
First fall frost: October 22
Exact actions: 36

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 6b's typical frost window.

36 matching actions, with 12 shown first

Start indoors

Annual Salvia (Scarlet Sage)
flower
February 26 to March 12
0 sources
Bachelors Button
flower
February 26 to March 12
0 sources
Basil
herb
February 26 to March 12
0 sources
Bitter Melon
vegetable
March 26
0 sources
Bok Choy
vegetable
March 12 to March 26
0 sources

Show 24 more start indoors

CauliflowerFebruary 19 to March 5
CucamelonMarch 12 to March 26
CucumberMarch 26
FennelMarch 12 to March 26
German ChamomileFebruary 26 to March 12
Globe AmaranthFebruary 26 to March 12
Ground CherryMarch 5 to March 26
ImpatiensFebruary 12 to March 12
LettuceMarch 12 to March 19
Luffa GourdFebruary 26 to March 12
Malabar SpinachFebruary 26 to March 12
MarigoldMarch 12 to March 26
MoonflowerMarch 12 to March 26
NasturtiumMarch 12 to March 26
New Zealand SpinachMarch 26 to April 2
ParsleyFebruary 26 to March 12
RhubarbMarch 12
RomanescoMarch 12 to March 26
SpinachMarch 12 to March 19
StockFebruary 26 to March 12
Sweet AlyssumMarch 12 to March 19
Swiss ChardMarch 12 to March 19
TomatilloMarch 5 to March 26
TomatoMarch 12 to March 19

Transplant outdoors

Globe Artichoke
vegetable
March 26 to April 2
0 sources
Kale
vegetable
March 19 to March 26
0 sources

Direct sow

Kale
vegetable
March 19 to March 26
0 sources
Kohlrabi
vegetable
March 26 to April 9
0 sources
Spinach
vegetable
March 26 to April 2
0 sources
Sweet Alyssum
flower
March 26 to April 9
0 sources
Swiss Chard
vegetable
March 26 to April 2
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.