The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

You will be able to estimate when it's possible to plant penstemon by looking at the USDA zone info for Centerton.

Planting Calendar for Penstemon

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

Penstemon do well in moderate cold which means that you can plant them earlier than other frost tender plants.

The earliest that you can plant penstemon in Centerton 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 grow to maturity. Starting your penstemon indoors is a great way to get them started a little bit earlier.

Last Frost Date

On average the last frost is on April 15 in Centerton. It might get as low as -5°F during the coldest months of winter.

It's important to remember that USDA zone info for Centerton is just an average and the actual date of last frost will vary from year to year. Half of the time in Centerton you get a frost after April 15 so just be sure to be ready to cover your penstemon if you have one of those late frosts.

USDA Zone Info for Centerton

Here is the info for USDA Zone 6b.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-5°F
Highest Expected Low	0°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 0°F.

Plants to Grow in Centerton

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