Liatris are hardy perennials and can tolerate temperatures to around -20C. They can be planted directly outside in spring without the need for frost protection.
— Plant the corms directly into a clear, cultivated space in borders or sturdy containers during spring.
— Plant the corms around 15cm deep with the buds facing upwards. Any green leafy growth which may have already emerges can be left exposed abover the soil surface.
— Choose a space in a sunny border with free-draining soil, or container. If planting in a container, you can use multipurpose compost or soil-based compost.
— Space the corms 10-20cm apart.
— Water-in after planting and keep hydrated once in growth.
— Remove the flower stems after flowering leaving the leaves intact. The leaves can be cut back in autumn.