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.

You can determine when it's possible to plant jerusalem artichokes in Tustin by reviewing the USDA zone info.

Planting Calendar for Jerusalem artichokes

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

Since jerusalem artichokes do well in moderate cold you can plant them a little bit earlier in the year than more sensitive plants.

The earliest that you can plant jerusalem artichokes in Tustin 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 all chance of frost has passed is on January 31 in Tustin. It might get as low as 30°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Tustin is not always accurate and the actual date of last frost will vary from year to year. Half of the time in Tustin last frost occurs after January 31 so be sure to be ready to cover your jerusalem artichokes if you have a late frost.

USDA Zone Info for Tustin

Here is the info for USDA Zone 10a.

Average Date of Last Frost (spring)	January 31
Average Date of First Frost (fall)	December 15
Lowest Expected Low	30°F
Highest Expected Low	35°F

This means that on a really cold year, the coldest it will get is 30°F. On most years you should be prepared to experience lows near 35°F.

Plants to Grow in Tustin

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