One of the best tools that you have as gardeners to help us figure out your gardening schedule is the USDA zone info. 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 Miami can be reffered to in order to estimate when it's possible 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.

Penstemon do ok in a little bit of cold which tells us that you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant penstemon in Miami 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. If you wait any later than that and your penstemon may not have a chance to fully mature. Starting your penstemon indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

In Miami it never frosts. You should expect an average low temperature of 40°F in the coldest months of winter.

Keep in mind that USDA zone info for Miami is an average and the actual date of last frost will vary from year to year. Since it never frosts in Miami you do not have to be ready to cover your penstemon in the event of one of those late frosts.

USDA Zone Info for Miami

Here is the info for USDA Zone 11a.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	40°F
Highest Expected Low	45°F

This means that on a really cold year, the coldest it will get is 40°F. On most years you should be prepared to experience lows near 45°F.

Plants to Grow in Miami

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