asclepias tuberosa 'hello yellow' (butterfly milkweed)

asclepias tuberosa 'hello yellow' (butterfly milkweed)yellow flowers attractive seed heads appear when flowers finish cultivar of the native asclepias tuberosa food source for monarch butterflies bloom time: june to august zone 3 height 45 70cm spread 30 50cm colour yellow a cultivar of the native perennial, growing in a dry to average, well drained soil and is drought tolerant slow to emerge in the spring mature established plants seed freely asclepias tuberosa has a deep tap root and does not like to

but not prolonged wet

in full sun or partial shade

easy to care for

gray-green foliage

although the 'new millennium series' have been bred to withstand more heat and humidity and are cold-hardy

in partial to full shade providing the plant has adequate moisture

upright stems with large

but generally an insect and disease free plant

in good locations

attracts butterflies and hummingbirds

often late to emerge in the spring

in partial sun