One of the first steps you take when you are estimating your gardening schedule is find your 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 way of getting a good idea when you can plant alternanthera is to consult the USDA zone info for Morrisville.

Planting Calendar for Alternanthera

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

It's probably not a good idea to plant alternanthera until after the last frost has passed because they are not cold tolerant.

The earliest that you can plant alternanthera in Morrisville 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 grow to maturity. You can get started a little bit earlier by starting your alternanthera indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Morrisville. You can expect an average low temperature of 5°F in the coldest months of winter.

Always keep in mind that USDA zone info for Morrisville is an average and the actual date of last frost changes from year to year. Half of the time in Morrisville last frost occurs after April 15 so make sure that you are ready to protect your alternanthera in the event of a surprise late frost.

USDA Zone Info for Morrisville

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 Morrisville

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