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.

It's a good idea to determine when to plant geum by using the USDA zone info for Atherton.

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 are one of those plants that can tolerate a tiny bit of cold weather you can plant them a bit earlier in the year than other frost tender plants.

The earliest that you can plant geum in Atherton 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 really do well. You can get started a couple of weeks earlier by starting your geum indoors.

Last Frost Date

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

Always keep in mind that USDA zone info for Atherton is not always accurate and the actual date of last frost is different every year. Since half of the time in Atherton last frost occurs after February 15 be ready to cover your geum if you have a surprise late frost.

USDA Zone Info for Atherton

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 Atherton

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