The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The earliest that you can plant yarrow in Rancho Mirage should be estimated by using the USDA zone info.

Planting Calendar for Yarrow

Frost tolerance for yarrow:	Very tolerant of frost.
When to plant:	Up to 7 weeks before last frost.

Yarrow are very cold tolerant which tells us that you can plant them much earlier than plants that are more sensitive to the cold.

The earliest that you can plant yarrow in Rancho Mirage 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 yarrow and expect a good harvest is probably October. You probably don't want to wait any later than that or else your yarrow may not have a chance to really do well. You can get started a few weeks earlier by starting your yarrow indoors.

Last Frost Date

The average date of last frost is February 15 in Rancho Mirage. It might get as low as 25°F during the coldest months of winter.

Keep in mind that USDA zone info for Rancho Mirage is not always accurate and the actual date of last frost can change quite a bit from year to year. Since half of the time in Rancho Mirage last frost occurs after February 15 be ready to cover your yarrow if you have a surprise late frost.

USDA Zone Info for Rancho Mirage

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 Mirage

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