Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The first chance to plant black radish in Alexandria can be estimated 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.

You can plant black radish a bit earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

The earliest that you can plant black radish in Alexandria 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 really do well. If you are starting your black radish indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on April 15 in Alexandria. In the coldest months of winter you can expect an average low temperature of -10°F.

Remember that USDA zone info for Alexandria is an average and the actual date of last frost will vary from year to year. Since half of the time in Alexandria you get surprised by a frost after April 15 be ready to cover your black radish in the event of a late frost.

USDA Zone Info for Alexandria

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Alexandria

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