Rosin Weed, Wholeleaf Rosinweed

Rosin Weed, Wholeleaf Rosinweed Silphium integrifolium Full sun, moderately wet to dry moisture level, adaptable to a wide range of soils including clay, neutral to slightly alkaline pH.  2-6 feet height, blooms summer into fall, yellow flowers, spreads by short rhizomes which enable the plant to form clumps but is not an aggressive spreader. Germination Code:  C(60) Native Region:  ? This is a coarse, sunflower-like perennial that is easy to grow.   Showy flowers.  Matures more quickly than other members of this genus.  Develops a taproot and division is not recommended.  Adapts well to wildflower and native plant gardens.  Attracts birds, butterflies and bees. flower;sun;wet;clay flower;sun;wet;loam flower;sun;wet;sand flower;sun;medium;clay flower;sun;medium;loam flowers;sun;medium;sand flower;sun;dry;clay flower;sun;dry;loam flower;sun;dry;sand

Photo Courtesy of Prairie Moon Nursery http://www.prairiemoon.com/ Photo Courtesy of John Hilty http://www.illinoiswildflowers.info/ Photo Courtesy of Prairie Moon Nursery http://www.prairiemoon.com/ Photo Courtesy of John Hilty http://www.illinoiswildflowers.info/