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.

By looking at the USDA zone info for San Benito it's possible to determine when it's a good idea to plant common hollyhock.

Planting Calendar for Common hollyhock

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

Common hollyhock are moderately cold tolerant which tells us that you can plant them earlier than plants that are more sensitive to the cold.

The earliest that you can plant common hollyhock in San Benito 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 common hollyhock and expect a good harvest is probably October. Any later than that and your common hollyhock may not have a chance to really do well. You can get started a few weeks earlier by starting your common hollyhock indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in San Benito. It might get as low as 25°F during the coldest months of winter.

Just be sure to remember that USDA zone info for San Benito is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in San Benito you get a frost after February 15 be ready to cover your common hollyhock in the event of a late frost.

USDA Zone Info for San Benito

Here is the info for USDA Zone 9b.

Average Date of Last Frost (spring)	February 15
Average Date of First Frost (fall)	December 15
Lowest Expected Low	25°F
Highest Expected Low	30°F

This means that on a really cold year, the coldest it will get is 25°F. On most years you should be prepared to experience lows near 30°F.

Plants to Grow in San Benito

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