One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You can estimate when it's possible to plant schizanthus in North Charleston by reviewing the USDA zone info.

Planting Calendar for Schizanthus

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

Schizanthus are not cold tolerant which means that it is necessary to wait until it warms up after all chance of frost has passed before you can plant them.

The earliest that you can plant schizanthus in North Charleston 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 schizanthus and expect a good harvest is probably August. Any later than that and your schizanthus may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your schizanthus indoors.

Last Frost Date

On average the last frost is on March 15 in North Charleston. It might get as low as 15°F during the coldest months of winter.

Since the USDA zone info for North Charleston is just an average the actual date of last frost changes from year to year. Since half of the time in North Charleston you get surprised by a frost after March 15 be ready to protect your schizanthus if you have a surprise late frost.

USDA Zone Info for North Charleston

Here is the info for USDA Zone 8b.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	15°F
Highest Expected Low	20°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 20°F.

Plants to Grow in North Charleston

You may be interested in your other planting guides for North Charleston.