One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

A common way of determining when to plant alternanthera is to refer to the USDA zone info for Eden.

Planting Calendar for Alternanthera

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

It's probably a bad idea to plant alternanthera until after the last frost has passed because they require warm weather.

The earliest that you can plant alternanthera in Eden 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. If you are starting your alternanthera indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in Eden. In the coldest months of winter you can expect an average low temperature of 5°F.

Since the USDA zone info for Eden is just an average the actual date of last frost is different every year. Since half of the time in Eden you get surprised by a frost after April 15 be ready to protect your alternanthera if you have a late frost.

USDA Zone Info for Eden

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Eden

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