One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

By checking out the USDA zone info for Livermore it's possible to determine when it's possible to plant jerusalem artichokes.

Planting Calendar for Jerusalem artichokes

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

Jerusalem artichokes do well in some cold which means that you can plant them a little earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant jerusalem artichokes in Livermore 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 jerusalem artichokes and expect a good harvest is probably October. Any later than that and your jerusalem artichokes may not have a chance to grow to maturity. You can get started a couple of weeks earlier by starting your jerusalem artichokes indoors.

Last Frost Date

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

Since the USDA zone info for Livermore is not always accurate the actual date of last frost changes from year to year. Half of the time in Livermore it frosts late in the year after February 15 so make sure that you are ready to cover your jerusalem artichokes if you have a late frost.

USDA Zone Info for Livermore

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 Livermore

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