The USDA Zone info is a great tool for gardeners to help us figure out your gardening schedule. The zone info helps tell us things like average date of last frost and lowest expected temperature for your area.

In Ellsworth you can estimate when it's possible to plant liatris 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.

Liatris do well in cold which means that you can start planting them much earlier than other plants that might not handle the cold.

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

Last Frost Date

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

Since the USDA zone info for Ellsworth is just an average the actual date of last frost changes from year to year. Half of the time in Ellsworth you get a frost after April 15 so always be ready to protect your liatris in the event of a late frost.

USDA Zone Info for Ellsworth

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 Ellsworth

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