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

In Cathedral City you can figure out when to plant tall phlox by checking out the USDA zone info.

Planting Calendar for Tall Phlox

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

Since tall phlox do well in moderate cold you can plant them a bit earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant tall phlox in Cathedral City 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 tall phlox and expect a good harvest is probably October. Any later than that and your tall phlox may not have a chance to fully mature. You can get started a little bit earlier by starting your tall phlox indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Cathedral City. You can expect an average low temperature of 25°F in the coldest months of winter.

It's important to remember that USDA zone info for Cathedral City is just an average and the actual date of last frost is different every year. Since half of the time in Cathedral City you get surprised by a frost after February 15 be ready to protect your tall phlox if you have a late frost.

USDA Zone Info for Cathedral City

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 Cathedral City

You may be interested in your other planting guides for Cathedral City.