When to Plant Cerastium in Clear Lake, IA

One of the first steps you take when you are figuring out 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.

In Clear Lake you can figure out when it's a good idea 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.

You can plant cerastium a little earlier in the year because they are one of those plants that can tolerate a little bit of cold weather.

JanFebMarAprMayJunJulAugSepOctNovDec
Legend 
A good time to plant cerastium
Possibly ok, but a risky time to plant cerastium
Probably not a good time to plant cerastium

The earliest that you can plant cerastium in Clear 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 cerastium and expect a good harvest is probably September. Any later than that and your cerastium may not have a chance to fully mature. If you are starting your cerastium indoors then you might be able to get away with starting them a couple of weeks earlier.

Last Frost Date

On average the last frost when the weather gets warmer is on April 15 in Clear Lake. It might get as low as -20°F during the coldest months of winter.

Just be sure to remember that the actual date of last frost is just an average because it is based on the USDA zone info for Clear Lake and it will vary from year to year. Since half of the time in Clear Lake last frost occurs after April 15 be ready to protect your cerastium if you have a surprise late frost.

USDA Zone Info for Clear Lake

Here is the info for USDA Zone 5a.

Average Date of Last Frost (spring)April 15
Average Date of First Frost (fall)October 15
Lowest Expected Low-20°F
Highest Expected Low-15°F

This means that on a really cold year, the coldest it will get is -20°F. On most years you should be prepared to experience lows near -15°F.

Plants to Grow in Clear Lake

You may be interested in your other planting guides for Clear Lake.