Looking for a mid-summer bloomer when not much else is blooming? Here it is – the shortest member of the Silphium family!
A coarse perennial with erect stems and large, yellow sunflower-like flowers. Leaves may be hairless, bristly, or woolly, and vary in shape as well, ranging from lanceolate to ovate to elliptic. Flowers are subtended by bracts with reflexed tips, and are followed by large flat seeds. Rosinweed has a fragrant resin while in flower.
Attracts birds, and special value to native bees.
Tolerates some light shade and some drought once established. Will grow in a variety of soils. Self-seeds in optimum growing conditions. Plants develop taproots, and division is not recommended once established.
Height: 2-6 ft.
Spread: 1-3 ft.
Bloom time: July to September
Sun: full sun
Deer may browse.
photo credit: Frank Mayfield