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.

You should be able to determine when you can plant radishes by looking at the USDA zone info for Waterbury.

Planting Calendar for Radishes

Frost tolerance for radishes:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

You can plant radishes earlier in the year because they are very cold tolerant.

The earliest that you can plant radishes in Waterbury 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 radishes and expect a good harvest is probably September. Any later than that and your radishes may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your radishes indoors.

Last Frost Date

The average date of last frost is April 15 in Waterbury. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Waterbury may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Waterbury last frost occurs after April 15 be ready to cover your radishes if you have a surprise late frost.

USDA Zone Info for Waterbury

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 Waterbury

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