When to Plant Liatris in Morrison, IL

Before planting it is a good idea to find your USDA Zone info to estimate your garden schedule. The most important data that the zone info tells us is average last frost and the lowest expected temperature for your area.

The best time to plant liatris in Morrison should be estimated by looking at the USDA zone info.


Planting Calendar for Liatris

Frost tolerance for liatris: Very tolerant of frost.
When to plant: Up to 7 weeks before last frost.

You can plant liatris a lot earlier in the year because they do well in cold.

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

The earliest that you can plant liatris in Morrison 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 liatris and expect a good harvest is probably September. Any later than that and your liatris may not have a chance to really do well. If you are starting your liatris indoors then you might be able to get away with starting them a little bit earlier.

Last Frost Date

The average date of last frost is April 15 in Morrison. In the coldest months of winter you can expect an average low temperature of -15°F.

Since the USDA zone info for Morrison is just an average the actual date of last frost changes from year to year. Since half of the time in Morrison you get surprised by a frost after April 15 be ready to protect your liatris if you have one of those late frosts.

USDA Zone Info for Morrison

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 Morrison

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