The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A way of getting a good idea when you can plant alternanthera is to look at the USDA zone info for Ennis.

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 require warm weather it's important to wait until after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant alternanthera in Ennis 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. If you wait any later than that and your alternanthera may not have a chance to really do well. Starting your alternanthera indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average the last frost has passed is on March 15 in Ennis. You can expect an average low temperature of 10°F in the coldest months of winter.

Since the USDA zone info for Ennis is an average the actual date of last frost is different every year. Since half of the time in Ennis last frost occurs after March 15 be ready to cover your alternanthera in the event of a late frost.

USDA Zone Info for Ennis

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 Ennis

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