Before planting it is a good idea to find your USDA Zone info to estimate 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 determine when you can plant black radish by reviewing 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 can survive in a little bit of cold which tells us that you can plant them a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant black radish in Newport is March. However, you really should wait until April 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 couple of weeks earlier by starting your black radish indoors.

Last Frost Date

The average date of last frost is May 15 in Newport. In the coldest months of winter you should expect an average low temperature of -30°F.

Remember that USDA zone info for Newport is not always accurate and the actual date of last frost can change quite a bit from year to year. Half of the time in Newport it frosts late in the year after May 15 so always be ready to cover your black radish if you have a late frost.

USDA Zone Info for Newport

Here is the info for USDA Zone 4a.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-30°F
Highest Expected Low	-25°F

This means that on a really cold year, the coldest it will get is -30°F. On most years you should be prepared to experience lows near -25°F.

Plants to Grow in Newport

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