One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of figuring out when to plant alternanthera is to use the USDA zone info for Mckinney.

Planting Calendar for Alternanthera

Frost tolerance for alternanthera:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

Since alternanthera do not do well in cold weather you must wait until after the last frost before you can plant them.

The earliest that you can plant alternanthera in Mckinney 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 alternanthera and expect a good harvest is probably August. You probably don't want to wait any later than that or else your alternanthera may not have a chance to fully mature. You can get started a little bit earlier by starting your alternanthera indoors.

Last Frost Date

On average all chance of frost has passed is on March 15 in Mckinney. You should expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Mckinney may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Half of the time in Mckinney you get a frost after March 15 so be sure to be ready to cover your alternanthera in the event of a surprise late frost.

USDA Zone Info for Mckinney

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Mckinney

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