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

In Mount Pleasant you can estimate when to plant penstemon by referring to the USDA zone info.

Planting Calendar for Penstemon

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

Penstemon are one of those plants that can tolerate a little bit of cold weather which means that you can start planting them earlier than other frost tender plants.

The earliest that you can plant penstemon in Mount Pleasant 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 penstemon and expect a good harvest is probably September. Any later than that and your penstemon may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your penstemon indoors.

Last Frost Date

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

It's important to remember that USDA zone info for Mount Pleasant is an average and the actual date of last frost will vary from year to year. Half of the time in Mount Pleasant there is a last frost after March 15 so make sure that you are ready to cover your penstemon if you have a surprise late frost.

USDA Zone Info for Mount Pleasant

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 Mount Pleasant

You may be interested in your other planting guides for Mount Pleasant.