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

A common way of figuring out when to plant digitalis is to look at the USDA zone info for Rancho Cucamonga.

Planting Calendar for Digitalis

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

Digitalis tend to make it in a little bit of cold which tells us that you can plant them just a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant digitalis in Rancho Cucamonga 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

On average the last frost is on February 15 in Rancho Cucamonga. You should expect an average low temperature of 25°F in the coldest months of winter.

Keep in mind that USDA zone info for Rancho Cucamonga is not always accurate and the actual date of last frost is different every year. Half of the time in Rancho Cucamonga you get a frost after February 15 so make sure that you are ready to protect your digitalis if you have one of those late frosts.

USDA Zone Info for Rancho Cucamonga

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 Rancho Cucamonga

You may be interested in your other planting guides for Rancho Cucamonga.