The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant tropical hibiscus in Key West can be estimated by checking out the USDA zone info.

Planting Calendar for Tropical Hibiscus

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

You really shouldn't plant tropical hibiscus until after the last frost when the weather gets warmer because they are not cold tolerant.

The earliest that you can plant tropical hibiscus in Key West 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 tropical hibiscus and expect a good harvest is probably November. If you wait any later than that and your tropical hibiscus may not have a chance to grow to maturity. If you are starting your tropical hibiscus indoors then you might be able to get away with starting them a few weeks earlier.

Last Frost Date

In Key West it never frosts. You can expect an average low temperature of 45°F in the coldest months of winter.

Since the USDA zone info for Key West may not be accurate from year to year the actual date of last frost will vary from year to year. Since it never frosts in Key West you do not have to be ready to protect your tropical hibiscus if you have a surprise late frost.

USDA Zone Info for Key West

Here is the info for USDA Zone 11b.

Average Date of Last Frost (spring)	Never
Average Date of First Frost (fall)	Never
Lowest Expected Low	45°F
Highest Expected Low	50°F

This means that on a really cold year, the coldest it will get is 45°F. On most years you should be prepared to experience lows near 50°F.

Plants to Grow in Key West

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