One of the first steps you take when you are estimating your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The USDA zone info for Key Biscayne can be read to estimate when it's the best time to plant begonias.

Planting Calendar for Begonias

Frost tolerance for begonias:	Not tolerant of frost.
When to plant:	After the last frost has passed.

It's probably a bad idea to plant begonias until after the last frost because they are not cold tolerant.

The earliest that you can plant begonias in Key Biscayne 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 begonias and expect a good harvest is probably November. If you wait any later than that and your begonias may not have a chance to really do well. If you are starting your begonias indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

In Key Biscayne it never frosts. It might get as low as 40°F during the coldest months of winter.

It's important to remember that USDA zone info for Key Biscayne is not always accurate and the actual date of last frost changes from year to year. Since it never frosts in Key Biscayne you do not have to be ready to cover your begonias in the event of a surprise late frost.

USDA Zone Info for Key Biscayne

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 Key Biscayne

You may be interested in your other planting guides for Key Biscayne.