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.

In Kannapolis you can estimate when it's the best time to plant astilbe by using the USDA zone info.

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.

Since astilbe do ok in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant astilbe in Kannapolis 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. Any later than that and your astilbe may not have a chance to grow to maturity. You can get started a little bit earlier by starting your astilbe indoors.

Last Frost Date

On average all chance of frost has passed is on April 15 in Kannapolis. You can expect an average low temperature of 5°F in the coldest months of winter.

Since the USDA zone info for Kannapolis may not be accurate from year to year the actual date of last frost can change quite a bit from year to year. Since half of the time in Kannapolis you get surprised by a frost after April 15 be ready to protect your astilbe if you have one of those late frosts.

USDA Zone Info for Kannapolis

Here is the info for USDA Zone 7b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	5°F
Highest Expected Low	10°F

This means that on a really cold year, the coldest it will get is 5°F. On most years you should be prepared to experience lows near 10°F.

Plants to Grow in Kannapolis

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