The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By checking out the USDA zone info for South River you will be able to estimate when it's possible 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.

It's not a good idea to plant alternanthera until after all chance of frost has passed because they require warm weather.

The earliest that you can plant alternanthera in South River 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 little bit earlier by starting your alternanthera indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in South River. It might get as low as 0°F during the coldest months of winter.

It's important to remember that USDA zone info for South River may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in South River there is a last frost after April 15 so make sure that you are ready to protect your alternanthera if you have a surprise late frost.

USDA Zone Info for South River

Here is the info for USDA Zone 7a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	0°F
Highest Expected Low	5°F

This means that on a really cold year, the coldest it will get is 0°F. On most years you should be prepared to experience lows near 5°F.

Plants to Grow in South River

You may be interested in your other planting guides for South River.