One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Napa you can estimate when it's the best time to plant aegopodium by referring to the USDA zone info.

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 tells us that you can plant them a quite a bit earlier than plants that are more sensitive to the cold.

The earliest that you can plant aegopodium in Napa 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 really do well. Starting your aegopodium indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Keep in mind that USDA zone info for Napa may not be accurate from year to year and the actual date of last frost is different every year. Since half of the time in Napa it frosts late in the year after February 15 be ready to protect your aegopodium in the event of one of those late frosts.

USDA Zone Info for Napa

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 Napa

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