WEED OF THE WEEK: Hemp Dogbane (Apocynum cannabinum L.) Hemp dogbane is an erect, one to three feet tall perennial. It grows from woody horizontal rootstocks. Leaves are smooth, elliptical, narrow and erect. Flowers are small with five greenish-white petals. Leaves and stems have a milky sap. Seed pods are long and slender. Hemp dogbane plants produce from 800-12,000 seeds per plant. Each plant usually has 10 to 60 seed pods and each pod contains between 80-200 seeds.Hemp dogbane is very competitive. It can reduce forage yields if not… Read More →







