One of the best tools that you have as gardeners to help us estimate 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 clover in South Holland can be determined by looking at the USDA zone info.

Planting Calendar for Clover

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

Clover can survive in some cold which means that you can plant them slightly earlier in the year than plants that are more sensitive to the cold.

The earliest that you can plant clover in South Holland 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 clover and expect a good harvest is probably August. Any later than that and your clover may not have a chance to grow to maturity. Starting your clover indoors is a great way to get them started a couple of weeks earlier.

Last Frost Date

On average all chance of frost has passed is on April 15 in South Holland. You should expect an average low temperature of -10°F in the coldest months of winter.

Just be sure to remember that USDA zone info for South Holland is not always accurate and the actual date of last frost will vary from year to year. Half of the time in South Holland last frost occurs after April 15 so just be sure to be ready to cover your clover in the event of one of those late frosts.

USDA Zone Info for South Holland

Here is the info for USDA Zone 6a.

Average Date of Last Frost (spring)	April 15
Average Date of First Frost (fall)	October 15
Lowest Expected Low	-10°F
Highest Expected Low	-5°F

This means that on a really cold year, the coldest it will get is -10°F. On most years you should be prepared to experience lows near -5°F.

Plants to Grow in South Holland

You may be interested in your other planting guides for South Holland.