Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Covington should be used to figure out when to plant alternanthera.

Planting Calendar for Alternanthera

Frost tolerance for alternanthera:	Not tolerant of frost.
When to plant:	After all chance of frost has passed.

You really shouldn't plant alternanthera until after the last frost has passed because they require warm weather.

The earliest that you can plant alternanthera in Covington 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. Any later than that and your alternanthera may not have a chance to fully mature. Starting your alternanthera indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Covington the average date of last frost happens on March 15. You can expect an average low temperature of 10°F in the coldest months of winter.

Keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Covington and it will vary from year to year. Since half of the time in Covington last frost occurs after March 15 be ready to cover your alternanthera if you have a late frost.

USDA Zone Info for Covington

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 Covington

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