Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By checking out the USDA zone info for Key West it's a good idea to estimate when it's the best time to plant chrysanthemum.

Planting Calendar for Chrysanthemum

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

Since chrysanthemum require warm weather it is necessary to wait until after the last frost before you can plant them.

The earliest that you can plant chrysanthemum 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 chrysanthemum and expect a good harvest is probably November. If you wait any later than that and your chrysanthemum may not have a chance to really do well. If you are starting your chrysanthemum 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.

Always keep in mind that the actual date of last frost is an average because it is based on the USDA zone info for Key West and it can change quite a bit from year to year. Since it never frosts in Key West you do not have to be ready to protect your chrysanthemum if you have a 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.