Before planting it is a good idea to find your USDA Zone info to determine your garden schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

The best time to plant alternaria in Crystal Lake should be figured out by checking out the USDA zone info.

Planting Calendar for Alternaria

Frost tolerance for alternaria:	Not tolerant of frost.
When to plant:	After the last frost.

You can not plant alternaria until after the last frost because they do not do well in cold weather.

The earliest that you can plant alternaria in Crystal Lake is April. However, you really should wait until May if you don't want to take any chances.

The last month that you can plant alternaria and expect a good harvest is probably August. If you wait any later than that and your alternaria may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your alternaria indoors.

Last Frost Date

The average date of last frost is April 15 in Crystal Lake. It might get as low as -15°F during the coldest months of winter.

Just be sure to remember that USDA zone info for Crystal Lake is not always accurate and the actual date of last frost is different every year. Since half of the time in Crystal Lake there is a last frost after April 15 be ready to cover your alternaria in the event of a surprise late frost.

USDA Zone Info for Crystal Lake

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 Crystal Lake

You may be interested in your other planting guides for Crystal Lake.