The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

You should be able to figure out when it's a good idea to plant crossandra by using the USDA zone info for Palmerton.

Planting Calendar for Crossandra

Frost tolerance for crossandra:	Not tolerant of frost.
When to plant:	After the last frost.

Crossandra are not cold tolerant which means that it's important to wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant crossandra in Palmerton is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant crossandra and expect a good harvest is probably August. You probably don't want to wait any later than that or else your crossandra may not have a chance to fully mature. Starting your crossandra indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is April 15 in Palmerton. It might get as low as -10°F during the coldest months of winter.

Since the USDA zone info for Palmerton is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Palmerton you get a frost after April 15 so make sure that you are prepared to cover your crossandra if you have one of those late frosts.

USDA Zone Info for Palmerton

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 Palmerton

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