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.

The USDA zone info for Kingsburg can be looked at to determine when to plant penstemon.

Planting Calendar for Penstemon

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

Since penstemon are moderately cold tolerant you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant penstemon in Kingsburg is January. However, you really should wait until February if you don't want to take any chances.

The last month that you can plant penstemon and expect a good harvest is probably October. If you wait any later than that and your penstemon may not have a chance to fully mature. If you are starting your penstemon indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Kingsburg. You should expect an average low temperature of 25°F in the coldest months of winter.

Since the USDA zone info for Kingsburg is just an average the actual date of last frost will vary from year to year. Since half of the time in Kingsburg last frost occurs after February 15 be ready to protect your penstemon if you have a late frost.

USDA Zone Info for Kingsburg

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in Kingsburg

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