Helianthus grosseserratus (Sawtooth Sunflower)
Helianthus grosseserratus (Sawtooth Sunflower)
100 (220)cm, Sawtooth Sunflower is a perennial making dense clumps in time. It bears numerous golden flowers above lanceolate to narrowly ovate leaves. Native of semi-moist soils in prairies and meadows of Illinois. For any rich, well drained soil in full sun. VIII-X.More Details »