The USDA Zone info is a great tool for gardeners to help us determine 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 first chance to plant digitalis in Zone 9b should be determined by checking out 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 do well in moderate cold you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant digitalis in Zone 9b 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 grow to maturity. You can get started a couple of weeks earlier by starting your digitalis indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Zone 9b. In the coldest months of winter you can expect an average low temperature of 25°F.

Keep in mind that USDA zone info for Zone 9b is an average and the actual date of last frost can change quite a bit from year to year. Half of the time in Zone 9b last frost occurs after February 15 so just be sure to be ready to cover your digitalis in the event of one of those late frosts.

USDA Zone Info for Zone 9b

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 Zone 9b

You may be interested in your other planting guides for Zone 9b.