When can I plant Black radish in Zone 2a

The USDA Zone info is a great tool for gardeners to help us estimate our gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

By using the USDA zone info for Zone 2a it's possible to determine when it's the best time to plant black radish.


Planting Calendar for Black radish

Frost tolerance for black radish: Tolerant of some frost.
When you should plant them: Up to 5 weeks before last frost.

Black radish do well in moderate cold which means that you can plant them earlier than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant black radish
Possibly ok, but a risky time to plant black radish
Probably not a good time to plant black radish

The earliest that you can plant black radish in Zone 2a is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant black radish and expect a good harvest is probably August. You probably don't want to wait any later than that or else your black radish may not have a chance to fully mature. You can get started a little bit earlier by starting your black radish indoors.

Last Frost Date

On average the last frost is on May 15 in Zone 2a. In the coldest months of winter we can expect an average low temperature of -50°F.

Remember that our actual date of last frost is an average because it is based on the USDA zone info for Zone 2a and it changes from year to year. Since half of the time in Zone 2a we get surprised by a frost after May 15 be ready to cover your black radish if we have one of those late frosts.

USDA Zone Info for Zone 2a

Here is the info for USDA Zone 2a.

Average Date of Last Frost (spring)May 15
Average Date of First Frost (fall)August 15
Lowest Expected Low-50°F
Highest Expected Low-45°F

This means that on a really cold year, the coldest it will get is -50°F. On most years you should be prepared to experience lows near -45°F.

Plants to Grow in Zone 2a

You may be interested in our other planting guides for Zone 2a.