What to plant in March, zone 3b

In zone 3b, the typical last spring frost is May 17 and the first fall frost is September 23. Here is your March checklist.

Start indoors

Start these indoors this month:

BasilMarch 22 to April 5
BroccoliMarch 8 to March 22
CabbageMarch 8 to March 22
CauliflowerMarch 15 to March 29
CollardsMarch 22
EggplantMarch 22
KaleMarch 1 to March 15
ParsleyMarch 22 to April 5
PepperMarch 22
PetuniaMarch 8 to March 22

Want your exact dates?

These are zone 3b averages. Enter your ZIP for a calendar built on your nearest weather station.

Open the planting calendar

USDA Plant Hardiness Zone Map, 2023. USDA Agricultural Research Service / Oregon State University PRISM Group. NOAA National Centers for Environmental Information, U.S. Climate Normals 1991-2020. Zone dates are medians; local conditions vary.