Towering above all other herbaceous plants, these biennials create an unforgettable display visually and are a buzz with life during their bloom! Not as prickly as other Thistles, they are adored by bees and hummingbirds!
Cirsium altissimum
Habitat
Adaptable to a wide range of soil conditions from well-drained to moist sites. Full sun is best for the most impactful display. They are colonizers of disturbed areas in nature.
Stem and Leaves
The plant exhibits tall, erect stems that can reach 3-10 feet in height! The stem is usually sparsely branched and covered in spiny, winged ridges. The leaves are deeply lobed, with sharp spines along the margins.
Flowers
Large, nodding flowers heads at the ends of its stems. The individual flowers are tubular and pink in colour, surrounded by spiny bracts. Bumblebees will often sleep just below the flower overnight.
Ecological Role
Play a crucial role as a nectar source for pollinators, supporting the health of local ecosystems. While often considered weeds, they provide habitat and food for various insects and birds. They are excellent pioneer species in ecosystem restoration.
Availability
Seed available.
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