One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first opportunity to plant black radish in Dickinson can be estimated by checking out 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.

Black radish do well in moderate cold which tells us that you can plant them earlier than other frost tender plants.

The earliest that you can plant black radish in Dickinson is January. However, you really should wait until February 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 October. Any later than that and your black radish may not have a chance to grow to maturity. You can get started a few weeks earlier by starting your black radish indoors.

Last Frost Date

The average date of last frost is February 15 in Dickinson. It might get as low as 20°F during the coldest months of winter.

Since the USDA zone info for Dickinson is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Dickinson there is a last frost after February 15 so always be ready to protect your black radish if you have one of those late frosts.

USDA Zone Info for Dickinson

Here is the info for USDA Zone 9a.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	20°F
Highest Expected Low	25°F

This means that on a really cold year, the coldest it will get is 20°F. On most years you should be prepared to experience lows near 25°F.

Plants to Grow in Dickinson

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