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

In Rockton you can determine when it's a good idea to plant clover by reviewing 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 do ok in moderate cold which means that you can get them planted just a bit earlier than other frost tender plants.

The earliest that you can plant clover in Rockton 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. You can get started a couple of weeks earlier by starting your clover indoors.

Last Frost Date

On average the last frost has passed is on April 15 in Rockton. It might get as low as -15°F during the coldest months of winter.

Since the USDA zone info for Rockton is just an average the actual date of last frost can change quite a bit from year to year. Half of the time in Rockton you get a frost after April 15 so make sure that you are prepared to protect your clover in the event of a late frost.

USDA Zone Info for Rockton

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 Rockton

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