Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

In Dunkirk you can determine when it's the best time to plant black radish by using the USDA zone info.

Planting Calendar for Black radish

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

Since black radish are moderately cold tolerant you can plant them just a bit earlier in the year than other frost tender plants.

The earliest that you can plant black radish in Dunkirk is February. However, you really should wait until March 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 September. If you wait any later than that and your black radish may not have a chance to fully mature. If you are starting your black radish indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Dunkirk. In the coldest months of winter you should expect an average low temperature of -5°F.

It's important to remember that USDA zone info for Dunkirk is an average and the actual date of last frost changes from year to year. Half of the time in Dunkirk it frosts late in the year after April 15 so just be sure to be ready to cover your black radish if you have a late frost.

USDA Zone Info for Dunkirk

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Dunkirk

You may be interested in your other planting guides for Dunkirk.