One of the best tools that you have as gardeners to help us determine your gardening schedule is the USDA zone info. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

By using the USDA zone info for Hanover Park you should be able to determine when 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.

You can plant jerusalem artichokes just a bit earlier in the year because they are moderately cold tolerant.

The earliest that you can plant jerusalem artichokes in Hanover Park 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. Any later than that and your jerusalem artichokes may not have a chance to really do well. You can get started a little bit earlier by starting your jerusalem artichokes indoors.

Last Frost Date

The average date of last frost is April 15 in Hanover Park. In the coldest months of winter you should expect an average low temperature of -15°F.

Since the USDA zone info for Hanover Park is an average the actual date of last frost can change quite a bit from year to year. Half of the time in Hanover Park there is a last frost after April 15 so be sure to be ready to protect your jerusalem artichokes if you have a late frost.

USDA Zone Info for Hanover Park

Here is the info for USDA Zone 5b.

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

This means that on a really cold year, the coldest it will get is -15°F. On most years you should be prepared to experience lows near -10°F.

Plants to Grow in Hanover Park

You may be interested in your other planting guides for Hanover Park.