Spread. 24 Inches Butterfly weed is a 2' tall herbaceous perennial that dies back in winter and re-sprouts from its underground tuber Butterfly weed is unique among milkweeds in that the sap is not milky and the leaves are not opposite.
Spread: 1.00 to 1.50 feet Mature plants may freely self-seed in the landscape if seed pods are not removed prior to splitting open. Butterfly Asclepias tuberosa, commonly called butterfly weed, is a tuberous rooted, Missouri native It typically grows in a clump to 1-3' tall and features clusters (umbels) of bright orange to.
Asclepias tuberosa (Orange Butterfly Weed) has glowing orange flowers that are a couple of growing seasons to establish its deep roots and reach mature size. Asclepias syriaca and A. speciosa will spread to make big patches of plants.