'Butterbur' or 'Bog Rhubarb' or 'Butterfly Dock'
Large rounded leaves. Plants have flowers produced in club shaped spikes in early spring, before the leaves emerge from the ground. Flower color is rosy-purple. Grow in deep, humus rich, moist soils -- not for wet water logged soils but they like constant soil moisture. Large leaves are attractive as an accent plant next to water and can grow to 3 feet across. Leaves are large and broad but plants only reach a height of 12 to 24 inches. Once established-they need some room-they can become invasive were really happy(moist soils)and their roots are disturbed, plants form slowly spreading clumps. But a large display of plants is impressive. Use in full sun to half day shade. In full sun under dry conditions plants can look ratty by the end of summer- so provide some moisture.
Zones 4-8. Surface sow seeds and use F 55, keep seed medium moist at all times, best if sown and sealed up in a plastic bag. Germination is spread out over many weeks.
300 seeds.
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