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

You can estimate when to plant penstemon in Canton by reviewing 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 moderately cold tolerant which means that you can plant them earlier than other plants that might not handle the cold.

The earliest that you can plant penstemon in Canton 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. You probably don't want to wait any later than that or else your penstemon may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your penstemon indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Canton may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Half of the time in Canton last frost occurs after March 15 so make sure that you are ready to protect your penstemon if you have a late frost.

USDA Zone Info for Canton

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 Canton

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