One of the best tools that you have as gardeners to help us estimate 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.

In Miami you can determine when it's the best time to plant periwinkles by looking at the USDA zone info.

Planting Calendar for Periwinkles

Frost tolerance for periwinkles:	Not tolerant of frost.
When to plant:	After the last frost when the weather gets warmer.

It's not a good idea to plant periwinkles until after all chance of frost has passed because they require warm weather.

The earliest that you can plant periwinkles 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 periwinkles and expect a good harvest is probably November. If you wait any later than that and your periwinkles may not have a chance to fully mature. You can get started a little bit earlier by starting your periwinkles indoors.

Last Frost Date

In Miami it never frosts. In the coldest months of winter you can expect an average low temperature of 40°F.

Since the USDA zone info for Miami is just an average the actual date of last frost is different every year. Since it never frosts in Miami you do not have to be ready to cover your periwinkles if you have a late frost.

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.