One of the best tools that you have as gardeners to help us estimate your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By referring to the USDA zone info for Boca Raton it's possible to determine when it's a good idea to plant skullcap.

Planting Calendar for Skullcap

Frost tolerance for skullcap:	Not tolerant of frost.
When to plant:	After the last frost.

Since skullcap require warm weather you really should wait until after all chance of frost has passed before you can plant them.

The earliest that you can plant skullcap in Boca Raton 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 skullcap and expect a good harvest is probably September. You probably don't want to wait any later than that or else your skullcap may not have a chance to fully mature. You can get started a little bit earlier by starting your skullcap indoors.

Last Frost Date

On average the last frost has passed is on January 31 in Boca Raton. You should expect an average low temperature of 35°F in the coldest months of winter.

Always keep in mind that the actual date of last frost is not always accurate because it is based on the USDA zone info for Boca Raton and it can change quite a bit from year to year. Since half of the time in Boca Raton you get a frost after January 31 be ready to cover your skullcap if you have a surprise late frost.

USDA Zone Info for Boca Raton

Here is the info for USDA Zone 10b.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	35°F
Highest Expected Low	40°F

This means that on a really cold year, the coldest it will get is 35°F. On most years you should be prepared to experience lows near 40°F.

Plants to Grow in Boca Raton

You may be interested in your other planting guides for Boca Raton.