One of the first steps you take when you are figuring out your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

A common way of getting a good idea when it's a good idea to plant creeping zinnia is to examine the USDA zone info for Rock Hill.

Planting Calendar for Creeping Zinnia

Frost tolerance for creeping zinnia:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant creeping zinnia slightly earlier in the year because they are barely cold tolerant.

The earliest that you can plant creeping zinnia in Rock Hill is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant creeping zinnia and expect a good harvest is probably August. Any later than that and your creeping zinnia may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your creeping zinnia indoors.

Last Frost Date

The average date of last frost is March 15 in Rock Hill. You can expect an average low temperature of 10°F in the coldest months of winter.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Rock Hill and it is different every year. Since half of the time in Rock Hill it frosts late in the year after March 15 be ready to cover your creeping zinnia in the event of one of those late frosts.

USDA Zone Info for Rock Hill

Here is the info for USDA Zone 8a.

Average Date of Last Frost (spring)	March 15
Average Date of First Frost (fall)	November 15
Lowest Expected Low	10°F
Highest Expected Low	15°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 15°F.

Plants to Grow in Rock Hill

You may be interested in your other planting guides for Rock Hill.