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.

The USDA zone info for Bethlehem should be looked at to estimate when it's a good idea to plant radishes.

Planting Calendar for Radishes

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

Since radishes are very cold tolerant you can plant them earlier in the year than more sensitive plants.

The earliest that you can plant radishes in Bethlehem 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 really do well. Starting your radishes 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 Bethlehem. You can expect an average low temperature of -5°F in the coldest months of winter.

Just be sure to remember that USDA zone info for Bethlehem may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Bethlehem there is a last frost after April 15 be ready to cover your radishes if you have a late frost.

USDA Zone Info for Bethlehem

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°F

This means that on a really cold year, the coldest it will get is -5°F. On most years you should be prepared to experience lows near 0°F.

Plants to Grow in Bethlehem

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