Cirsium rivulare 'Atropurpureum'
- Position: full sun
- Soil: moist, well-drained
- Rate of growth: average to fast-growing
- Flowering period: July and August
- Hardiness: fully hardy
Spectacular, deep crimson thistles appear on erect stems in July and August above spiny, dark green leaves. This handsome, towering thistle is a valuable addition to a summer garden and looks equally at home in a wildflower meadow, beside water or in groups among other perennials. Although it will tolerate dry conditions and partial shade, it does best in a moist, sunny border.
- Garden care: Divide congested plants from autumn to spring and cut back to the ground in autumn to prevent self-seeding.