growing liatris

We have tried to grow liatris in the past, and they tend to die out after 1 year. We are zone 5, we have planted them on both West side full sun gardens with good drainage, and Northside gardens also good drainage, some protection from wind/winter. Why don’t they last more than 1 or 2 years? What is the trick? What might we be doing wrong?
We have many gardens, with many perennials and I have many (38) roses so we are not novices. This is frustrating as we like liatris and would like to include this in our butterfly garden and other perennial beds.

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1 Comment To "growing liatris"

#1 Comment By Downtoearthdigs On 05/24/2018 @ 7:10 am

Loss of bulbs can be due to the bulb quality, disease, pests or environmental.
You can mulch the bulbs in fall to add some winter protection.

Here is a link to refresh you on the care requirements.

https://www.gardeningknowhow.com/ornamental/flowers/liatris/liatris-blazing-star.htm ^[1]

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