When can I plant Penstemon in Zone 13a

One of the best tools that we have as gardeners to help us figure out our gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for our area.

The best time to plant penstemon in Zone 13a should be determined by looking at the USDA zone info.


Planting Calendar for Penstemon

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

Penstemon are moderately cold tolerant which means that you can plant them earlier than plants that are more sensitive to the cold.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant penstemon
Possibly ok, but a risky time to plant penstemon
Probably not a good time to plant penstemon

The earliest that you can plant penstemon in Zone 13a 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 November. 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 couple of weeks earlier.

Last Frost Date

In Zone 13a it never frosts. In the coldest months of winter we should expect an average low temperature of 60°F.

Keep in mind that our actual date of last frost is not always accurate because it is based on the USDA zone info for Zone 13a and it is different every year. Since it never frosts in Zone 13a you do not have to be ready to cover your penstemon if we have one of those late frosts.

USDA Zone Info for Zone 13a

Here is the info for USDA Zone 13a.

Average Date of Last Frost (spring)Never
Average Date of First Frost (fall)Never
Lowest Expected Low60°F
Highest Expected Low65°F

This means that on a really cold year, the coldest it will get is 60°F. On most years you should be prepared to experience lows near 65°F.

Plants to Grow in Zone 13a

You may be interested in our other planting guides for Zone 13a.