Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant digitalis in San Carlos should be estimated by looking at the USDA zone info.

Planting Calendar for Digitalis

Frost tolerance for digitalis:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since digitalis are one of those plants that can tolerate a little bit of cold weather you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant digitalis in San Carlos 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 digitalis and expect a good harvest is probably October. If you wait any later than that and your digitalis may not have a chance to really do well. If you are starting your digitalis indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is January 31 in San Carlos. In the coldest months of winter you can expect an average low temperature of 30°F.

Just be sure to remember that USDA zone info for San Carlos is not always accurate and the actual date of last frost is different every year. Since half of the time in San Carlos you get surprised by a frost after January 31 be ready to cover your digitalis if you have a late frost.

USDA Zone Info for San Carlos

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 San Carlos

You may be interested in your other planting guides for San Carlos.