One of the first steps you take when you are determining 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.

You will be able to determine when you can plant lithospermum by reviewing the USDA zone info for Key West.

Planting Calendar for Lithospermum

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

It's a bad idea to plant lithospermum until after the last frost because they do not do well in cold weather.

The earliest that you can plant lithospermum 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 lithospermum and expect a good harvest is probably November. You probably don't want to wait any later than that or else your lithospermum may not have a chance to grow to maturity. Starting your lithospermum indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

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

Just be sure to remember that USDA zone info for Key West is an average and the actual date of last frost is different every year. Since it never frosts in Key West you do not have to be ready to cover your lithospermum in the event of 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.