One of the best tools that you have as gardeners to help us figure out 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.

The earliest that you can plant tritoma in Dyer should be determined by checking out 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.

Tritoma do ok in quite a bit of cold which means that you can plant them earlier in the year than other frost tender plants.

The earliest that you can plant tritoma in Dyer 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 fully mature. Starting your tritoma indoors is a great way to get them started a few weeks earlier.

Last Frost Date

In Dyer the average date of last frost happens on April 15. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Dyer is an average the actual date of last frost will vary from year to year. Half of the time in Dyer last frost occurs after April 15 so always be ready to cover your tritoma in the event of a surprise late frost.

USDA Zone Info for Dyer

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 Dyer

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