The USDA Zone info is a great tool for gardeners to help us determine your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The USDA zone info for Mission should be reviewed to figure out when it's the best time 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 ok in moderate cold which means that you can plant them a little earlier in the year than more sensitive plants.

The earliest that you can plant jerusalem artichokes in Mission is February. However, you really should wait until March 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 September. If you wait any later than that and your jerusalem artichokes may not have a chance to really do well. 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 April 15 in Mission. You should expect an average low temperature of -10°F in the coldest months of winter.

Since the USDA zone info for Mission is just an average the actual date of last frost changes from year to year. Since half of the time in Mission it frosts late in the year after April 15 be ready to cover your jerusalem artichokes if you have a late frost.

USDA Zone Info for Mission

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in Mission

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