Before planting it is a good idea to find your USDA Zone info to figure out your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

One way of determining when it's the best time to plant astilbe is to look at the USDA zone info for Mount Pleasant.

Planting Calendar for Astilbe

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

You can plant astilbe just a tiny bit earlier in the year because they do ok in moderate cold.

The earliest that you can plant astilbe in Mount Pleasant 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 astilbe and expect a good harvest is probably August. If you wait any later than that and your astilbe may not have a chance to fully mature. Starting your astilbe indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Always keep in mind that USDA zone info for Mount Pleasant is an average and the actual date of last frost will vary from year to year. Since half of the time in Mount Pleasant there is a last frost after March 15 be ready to cover your astilbe in the event of 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.