One of the best tools that you have as gardeners to help us figure out your gardening schedule is the 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.

In Stewartville you can determine when it's the best time to plant cerastium by referring to the USDA zone info.

Planting Calendar for Cerastium

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

Since cerastium are moderately cold tolerant you can plant them a little earlier in the year than other frost tender plants.

The earliest that you can plant cerastium in Stewartville 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 cerastium and expect a good harvest is probably August. You probably don't want to wait any later than that or else your cerastium may not have a chance to fully mature. You can get started a couple of weeks earlier by starting your cerastium indoors.

Last Frost Date

The average date of last frost is May 15 in Stewartville. It might get as low as -25°F during the coldest months of winter.

Since the USDA zone info for Stewartville may not be accurate from year to year the actual date of last frost will vary from year to year. Half of the time in Stewartville you get a frost after May 15 so just be sure to be ready to cover your cerastium if you have a surprise late frost.

USDA Zone Info for Stewartville

Here is the info for USDA Zone 4b.

Average Date of Last Frost (spring)	May 15
Average Date of First Frost (fall)	September 15
Lowest Expected Low	-25°F
Highest Expected Low	-20°F

This means that on a really cold year, the coldest it will get is -25°F. On most years you should be prepared to experience lows near -20°F.

Plants to Grow in Stewartville

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