Is Liatris Hardy?
Then, do Liatris come back every year?
WHEN TO PLANT: Liatris corms are planted in spring, when the weather is cool and it's easy for the young plants to get established. Flowers usually appear the first year, approximately 70 to 90 days after planting, and the plants will rebloom for many years to come.
Additionally, do you cut back Liatris? In the early winter, you can then cut the Liatris spicata of close to soil, because the plant withdraws completely into the root ball. The cut is not important for the plant, which can overwinter with foliage.
Just so, does Liatris spread?
The plant spreads slowly, but eventually becomes 3 to 5 feet wide. One plant is usually enough for most garden spaces. Blazing Star self-sows and also spreads through underground roots.
How do you grow Liatris bulbs?
Dig a 6-inch-deep hole for each blazing star corm or rhizome. Space the holes 12 to 15 inches apart in all directions. Set a corm in each prepared planting hole with its flat side on the bottom. Fill in the hole with soil immediately after planting.