The USDA Zone info is a great tool for gardeners to help us estimate 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.

One way of making a decision about when it's a good idea to plant crossandra is to consult the USDA zone info for Troy.

Planting Calendar for Crossandra

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

Since crossandra are not cold tolerant it is necessary to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant crossandra in Troy 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 grow to maturity. You can get started a couple of weeks earlier by starting your crossandra indoors.

Last Frost Date

On average the last frost is on April 15 in Troy. It might get as low as -5°F during the coldest months of winter.

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

USDA Zone Info for Troy

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 Troy

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