One of the best tools that you have as gardeners to help us estimate 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.

By using the USDA zone info for Burlington it's a good idea to estimate when it's a good idea to plant black radish.

Planting Calendar for Black radish

Frost tolerance for black radish:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since black radish do well in moderate cold you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant black radish in Burlington 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. 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 few weeks earlier.

Last Frost Date

On average the last frost is on April 15 in Burlington. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Burlington is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Burlington last frost occurs after April 15 so make sure that you are prepared to cover your black radish in the event of a late frost.

USDA Zone Info for Burlington

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Burlington

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