The USDA Zone info is a great tool for gardeners to help us figure out 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 USDA zone info for Key West should be used to estimate when it's a good idea to plant argyranthemum.

Planting Calendar for Argyranthemum

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

Argyranthemum do not do well in cold weather which means that you must wait until it warms up after the last frost has passed before you can plant them.

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

Last Frost Date

In Key West it never frosts. It might get as low as 45°F during the coldest months of winter.

Always keep in mind that USDA zone info for Key West is not always accurate and the actual date of last frost changes from year to year. Since it never frosts in Key West you do not have to be ready to cover your argyranthemum in the event of one of those late frosts.

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.