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

In Rancho Cucamonga you can estimate when it's a good idea to plant geum by referring to the USDA zone info.

Planting Calendar for Geum

Frost tolerance for geum:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

Since geum do ok in moderate cold you can plant them slightly earlier in the year than more sensitive plants.

The earliest that you can plant geum in Rancho Cucamonga is February. However, you really should wait until March if you don't want to take any chances.

The last month that you can plant geum and expect a good harvest is probably September. If you wait any later than that and your geum may not have a chance to fully mature. You can get started a little bit earlier by starting your geum indoors.

Last Frost Date

On average all chance of frost has passed is on February 15 in Rancho Cucamonga. In the coldest months of winter you can expect an average low temperature of 25°F.

Remember that the actual date of last frost is an average because it is based on the USDA zone info for Rancho Cucamonga and it will vary from year to year. Half of the time in Rancho Cucamonga there is a last frost after February 15 so make sure that you are ready to cover your geum in the event of a late frost.

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.