Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You should be able to determine when to plant crossandra by looking at the USDA zone info for Bisbee.

Planting Calendar for Crossandra

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

Since crossandra require warm weather you have to wait until after the last frost has passed before you can plant them.

The earliest that you can plant crossandra in Bisbee 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. If you wait any later than that and your crossandra may not have a chance to fully mature. 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

On average the last frost is on March 15 in Bisbee. You can expect an average low temperature of 15°F in the coldest months of winter.

Since the USDA zone info for Bisbee may not be accurate from year to year the actual date of last frost is different every year. Half of the time in Bisbee you get a frost after March 15 so make sure that you are ready to cover your crossandra in the event of a surprise late frost.

USDA Zone Info for Bisbee

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in Bisbee

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