One of the first steps you take when you are determining 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.

You should be able to figure out when it's the best time to plant alternanthera by checking out the USDA zone info for Bluffton.

Planting Calendar for Alternanthera

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

It's probably a bad 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 Bluffton 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 fully mature. You can get started a few weeks earlier by starting your alternanthera indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Bluffton. You can expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Bluffton is just an average the actual date of last frost is different every year. Since half of the time in Bluffton there is a last frost after April 15 be ready to cover your alternanthera if you have one of those late frosts.

USDA Zone Info for Bluffton

Here is the info for USDA Zone 6a.

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

Plants to Grow in Bluffton

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