The USDA Zone info is a great tool for gardeners to help us determine 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.

You can estimate when you can plant parsley in Crystal Lake by referring to the USDA zone info.

Planting Calendar for Parsley

Frost tolerance for parsley:	Tolerant of some frost.
When to plant:	Up to 5 weeks before last frost.

Since parsley do well in moderate cold you can plant them a bit earlier in the year than more sensitive plants.

The earliest that you can plant parsley in Crystal Lake 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 parsley and expect a good harvest is probably September. If you wait any later than that and your parsley may not have a chance to really do well. You can get started a couple of weeks earlier by starting your parsley indoors.

Last Frost Date

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

Just be sure to remember that USDA zone info for Crystal Lake is just an average and the actual date of last frost will vary from year to year. Half of the time in Crystal Lake you get surprised by a frost after April 15 so just be sure to be ready to cover your parsley 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.