Before planting it is a good idea to find your USDA Zone info to figure out 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 Newport you can estimate when it's possible 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.

Black radish are moderately cold tolerant which tells us that you can get them planted earlier than other frost tender plants.

The earliest that you can plant black radish in Newport 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. Starting your black radish indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Newport. You can expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Newport is an average the actual date of last frost will vary from year to year. Half of the time in Newport there is a last frost after March 15 so make sure that you are ready to cover your black radish in the event of a late frost.

USDA Zone Info for Newport

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Newport

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