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.

You will be able to figure out when to plant torch lilys by using the USDA zone info for Sonoma.

Planting Calendar for Torch Lilys

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

Torch Lilys tend to make it in a bit of cold which means that you can plant them a lot earlier in the year than more sensitive plants.

The earliest that you can plant torch lilys 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 torch lilys and expect a good harvest is probably October. If you wait any later than that and your torch lilys may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your torch lilys indoors.

Last Frost Date

On average the last frost when the weather gets warmer is on February 15 in Sonoma. It might get as low as 25°F during the coldest months of winter.

It's important to remember that USDA zone info for Sonoma is just an average and the actual date of last frost is different every year. Since half of the time in Sonoma it frosts late in the year after February 15 be ready to protect your torch lilys if you have one of those late frosts.

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.