One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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 can figure out when it's possible to plant lithospermum in Longboat Key by reviewing the USDA zone info.

Planting Calendar for Lithospermum

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

Lithospermum are not cold tolerant which tells us that you really should wait until it warms up after the last frost when the weather gets warmer before you can plant them.

The earliest that you can plant lithospermum in Longboat Key is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant lithospermum and expect a good harvest is probably September. Any later than that and your lithospermum may not have a chance to fully mature. You can get started a little bit earlier by starting your lithospermum indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on January 31 in Longboat Key. It might get as low as 30°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Longboat Key may not be accurate from year to year and the actual date of last frost can change quite a bit from year to year. Since half of the time in Longboat Key you get a frost after January 31 be ready to protect your lithospermum if you have one of those late frosts.

USDA Zone Info for Longboat Key

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Longboat Key

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