One of the best tools that you have as gardeners to help us determine your gardening schedule is the 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.

In Hartsville you can determine when you can plant snapdragons by looking at the USDA zone info.

Planting Calendar for Snapdragons

Frost tolerance for snapdragons:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since snapdragons are moderately cold tolerant you can plant them just a bit earlier in the year than other plants that might not handle the cold.

The earliest that you can plant snapdragons in Hartsville is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant snapdragons and expect a good harvest is probably September. You probably don't want to wait any later than that or else your snapdragons may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your snapdragons indoors.

Last Frost Date

On average the last frost is on March 15 in Hartsville. It might get as low as 10°F during the coldest months of winter.

Since the USDA zone info for Hartsville is not always accurate the actual date of last frost is different every year. Half of the time in Hartsville you get a frost after March 15 so make sure that you are ready to cover your snapdragons if you have a late frost.

USDA Zone Info for Hartsville

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 Hartsville

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