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.

The first chance to plant tritoma in Schiller Park can be figured out by reviewing the USDA zone info.

Planting Calendar for Tritoma

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

Since tritoma are one of those plants that can tolerate quite a bit of cold weather you can plant them a lot earlier in the year than other frost tender plants.

The earliest that you can plant tritoma in Schiller 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 tritoma and expect a good harvest is probably September. Any later than that and your tritoma may not have a chance to really do well. Starting your tritoma indoors is a great way to get them started a little bit earlier.

Last Frost Date

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

Since the USDA zone info for Schiller Park is not always accurate the actual date of last frost can change quite a bit from year to year. Half of the time in Schiller Park last frost occurs after April 15 so be sure to be ready to cover your tritoma if you have a late frost.

USDA Zone Info for Schiller 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 Schiller Park

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