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.

The USDA zone info for Sonoma should be used to estimate when you can plant aegopodium.

Planting Calendar for Aegopodium

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

You can plant aegopodium earlier in the year because they are very cold tolerant.

The earliest that you can plant aegopodium in Sonoma 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. Any later than that and 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 Sonoma. In the coldest months of winter you should expect an average low temperature of 25°F.

Remember that the actual date of last frost is not always accurate because it is based on the USDA zone info for Sonoma and it can change quite a bit from year to year. Since half of the time in Sonoma it frosts late in the year after February 15 be ready to cover your aegopodium in the event of a surprise late frost.

USDA Zone Info for Sonoma

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 Sonoma

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