Caltha palustris "Plena" (Double Flowering Marsh Marigold)

Common Name: Marsh Marigold Plena
Plant Description Name: Caltha palustris "Plena" (Marsh Double Flowering Marigold) 
Native wildflower for most of the Northern hemisphere, much loved for the showy double yellow buttercup flowers that appear in early spring. Easy to grow and adapts to a lot of conditions. Pinch back after first bloom, good chance will bloom again in summer, Likes marshy pond, stream edges and bogs. Full sun to part shade, up to 2' tall, Zone 2-9