FrostCal

When to Plant Radishes in Maryland

In a typical Maryland location, sow outdoors Feb 27 – Mar 13. Across the state, the outdoor planting window starts as early as Feb 15 in California and as late as Mar 20 in Westminster. For a fall crop, plant around Sep 25 – Oct 9.

Method Direct sow
Days to maturity 22–30 days

Very fast and cold-hardy; direct sow 3-5 weeks before last frost, as soon as soil can be worked.

Radishes Planting Dates by City

CityDirect sowFall planting
BaltimoreFeb 17 – Mar 3Oct 10 – Oct 24
ColumbiaMar 6 – Mar 20Sep 19 – Oct 3
GermantownMar 10 – Mar 24Sep 17 – Oct 1
Silver SpringMar 6 – Mar 20Sep 20 – Oct 4
FrederickFeb 26 – Mar 12Sep 25 – Oct 9
WaldorfFeb 27 – Mar 13Sep 27 – Oct 11
Glen BurnieMar 6 – Mar 20Sep 19 – Oct 3
GaithersburgFeb 25 – Mar 11Sep 25 – Oct 9
RockvilleFeb 25 – Mar 11Sep 25 – Oct 9
Ellicott CityMar 6 – Mar 20Sep 19 – Oct 3
DundalkFeb 17 – Mar 3Oct 10 – Oct 24
BethesdaMar 5 – Mar 19Sep 19 – Oct 3
BowieMar 18 – Apr 1Sep 10 – Sep 24
TowsonFeb 26 – Mar 12Sep 26 – Oct 10
Aspen HillFeb 25 – Mar 11Sep 25 – Oct 9
WheatonFeb 25 – Mar 11Sep 25 – Oct 9
Bel Air SouthMar 6 – Mar 20Sep 18 – Oct 2
Gwynn OakFeb 26 – Mar 12Sep 26 – Oct 10
PotomacFeb 25 – Mar 11Sep 25 – Oct 9
SevernMar 6 – Mar 20Sep 19 – Oct 3
North BethesdaFeb 25 – Mar 11Sep 25 – Oct 9
CatonsvilleFeb 17 – Mar 3Oct 10 – Oct 24
AnnapolisFeb 20 – Mar 6Oct 2 – Oct 16
HagerstownMar 7 – Mar 21Sep 16 – Sep 30
EssexFeb 17 – Mar 3Oct 10 – Oct 24
HanoverMar 6 – Mar 20Sep 19 – Oct 3
WoodlawnFeb 26 – Mar 12Sep 26 – Oct 10
Severna ParkFeb 20 – Mar 6Oct 2 – Oct 16
OdentonMar 6 – Mar 20Sep 19 – Oct 3
Saint CharlesFeb 27 – Mar 13Sep 27 – Oct 11

Showing the 30 most populous of 151 Maryland cities. Dates are estimates from each city's NOAA frost normals and university extension timing guidelines. See all Maryland cities.

Frequently Asked Questions

When should I plant radishes in Maryland?

In a typical Maryland location, sow outdoors Feb 27 – Mar 13. Across the state, the outdoor planting window starts as early as Feb 15 in California and as late as Mar 20 in Westminster. For a fall crop, plant around Sep 25 – Oct 9.

When is the last frost in Maryland?

The average last spring frost in Maryland ranges from March 22 in California to April 24 in Westminster, based on NOAA 1991–2020 climate normals.

How long do radishes take to grow?

Radishes typically take 22–30 days from planting to harvest. Very fast and cold-hardy; direct sow 3-5 weeks before last frost, as soon as soil can be worked.

Other Crops in Maryland

When to plant radishes in other states

Related Guides