The USDA Zone info is a great tool for gardeners to help us estimate your gardening schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant digitalis in Riverbank should be figured out by reviewing 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.

Digitalis are moderately cold tolerant which means that you can get them planted earlier than plants that are more sensitive to the cold.

The earliest that you can plant digitalis in Riverbank 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. Any later than that and your digitalis may not have a chance to really do well. Starting your digitalis indoors is a great way to get them started a little bit earlier.

Last Frost Date

The average date of last frost is February 15 in Riverbank. You can expect an average low temperature of 25°F in the coldest months of winter.

It's important to remember that USDA zone info for Riverbank is an average and the actual date of last frost can change quite a bit from year to year. Since half of the time in Riverbank there is a last frost after February 15 be ready to protect your digitalis in the event of one of those late frosts.

USDA Zone Info for Riverbank

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 Riverbank

You may be interested in your other planting guides for Riverbank.