For deadhead, just cut the spent bloom part off leaving the green foliage to feed the roots underground for a better next year.
In blooms - • In Blooms & Deadhead For Liatris, Gay Feat...
Winter cut back - • Winter Cut Back, Gay Feathers, "Blazing St...
Dig & divide for Transplant - • Dig & Divide For Transplant Liatris, Gay F...
Home garden in Canada west coast zone 8