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

You can determine when it's a good idea to plant alternanthera in Lexington by reviewing the USDA zone info.

Planting Calendar for Alternanthera

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

It's not a good idea to plant alternanthera until after the last frost has passed because they do not do well in cold weather.

The earliest that you can plant alternanthera in Lexington 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 grow to maturity. You can get started a few weeks earlier by starting your alternanthera indoors.

Last Frost Date

The average date of last frost is April 15 in Lexington. You should expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Lexington is just an average the actual date of last frost will vary from year to year. Since half of the time in Lexington you get a frost after April 15 be ready to cover your alternanthera in the event of one of those late frosts.

USDA Zone Info for Lexington

Here is the info for USDA Zone 5b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-15°F
Highest Expected Low	-10°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 -10°F.

Plants to Grow in Lexington

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