Description: Globe thistles are stalwart perennials that produce metallic-blue blossoms with perfectly round flower heads atop ribbed stems. Plants grow two to five feet tall and almost as wide. The spiny-edged leaves are white and woolly underneath.
Hardy: Zone 3
Bloom Time: Late summer - early fall
Height: 2- 5 feet
Spacing: 18'' - 24''
Sun Needs: Full sun
Water Needs: Low (When established)
Outstanding Features: This plant is attractive to bees, butterflies and/or birds.
Uses: The larger species are impressive when used in background plantings or when grown as specimen plants. The smaller types are attractive in a bed, border, or wild garden. Is also nice dried or in cut arrangements.
Tips: Self-sows freely; deadhead if you do not want volunteer seedlings next season. This plant is resistant to deer.