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.

The USDA zone info for Fort Mill should be used to determine when to plant bidens.

Planting Calendar for Bidens

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

Since bidens are not cold tolerant it's necessary to wait until after the last frost before you can plant them.

The earliest that you can plant bidens in Fort Mill 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 bidens and expect a good harvest is probably August. You probably don't want to wait any later than that or else your bidens may not have a chance to really do well. Starting your bidens indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

The average date of last frost is March 15 in Fort Mill. In the coldest months of winter you can expect an average low temperature of 10°F.

Since the USDA zone info for Fort Mill may not be accurate from year to year the actual date of last frost is different every year. Since half of the time in Fort Mill you get a frost after March 15 be ready to protect your bidens in the event of a surprise late frost.

USDA Zone Info for Fort Mill

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 Fort Mill

You may be interested in your other planting guides for Fort Mill.