One of the first steps you take when you are determining your gardening schedule is find your USDA Zone info. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The earliest that you can plant trifolium in Libertyville can be figured out by reviewing the USDA zone info.

Planting Calendar for Trifolium

Frost tolerance for trifolium:	Tolerant of a very small amount of frost.
When to plant:	Up to 3 weeks before last frost.

You can plant trifolium slightly earlier in the year because they do ok in moderate cold.

The earliest that you can plant trifolium in Libertyville is March. However, you really should wait until April if you don't want to take any chances.

The last month that you can plant trifolium and expect a good harvest is probably August. If you wait any later than that and your trifolium may not have a chance to really do well. Starting your trifolium 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 Libertyville. You can expect an average low temperature of -15°F in the coldest months of winter.

Since the USDA zone info for Libertyville is an average the actual date of last frost is different every year. Since half of the time in Libertyville there is a last frost after April 15 be ready to protect your trifolium if you have a late frost.

USDA Zone Info for Libertyville

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 Libertyville

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