The USDA Zone info is a great tool for gardeners to help us estimate 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.

By using the USDA zone info for Rohnert Park it's a good idea to estimate when it's possible to plant aegopodium.

Planting Calendar for Aegopodium

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

Aegopodium are very cold tolerant which means that you can plant them much earlier than plants that are more sensitive to the cold.

The earliest that you can plant aegopodium in Rohnert Park 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 aegopodium and expect a good harvest is probably October. You probably don't want to wait any later than that or else your aegopodium may not have a chance to fully mature. If you are starting your aegopodium indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

The average date of last frost is February 15 in Rohnert Park. In the coldest months of winter you should expect an average low temperature of 25°F.

Since the USDA zone info for Rohnert Park is not always accurate the actual date of last frost will vary from year to year. Since half of the time in Rohnert Park you get surprised by a frost after February 15 be ready to cover your aegopodium in the event of a surprise late frost.

USDA Zone Info for Rohnert Park

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 Rohnert Park

You may be interested in your other planting guides for Rohnert Park.