One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

It's a good idea to figure out when to plant crossandra by reviewing the USDA zone info for Ashland.

Planting Calendar for Crossandra

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

You really shouldn't plant crossandra until after the last frost because they are not cold tolerant.

The earliest that you can plant crossandra in Ashland is May. However, you really should wait until June 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. If you wait any later than that and your crossandra may not have a chance to grow to maturity. If you are starting your crossandra indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Ashland the average date of last frost happens on May 15. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Ashland is an average the actual date of last frost will vary from year to year. Since half of the time in Ashland you get surprised by a frost after May 15 be ready to protect your crossandra if you have a surprise late frost.

USDA Zone Info for Ashland

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Ashland

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