Asclepias tuberosa
A compact milkweed producing vivid orange flowers through early to mid-summer. Unlike other members of the genus, Asclepias tuberosa demands full sun and sharply drained, lean soils to persist, particularly in coastal gardens. When sited correctly, it forms a tidy clump and provides strong seasonal colour without spreading.
Growing Conditions
Light: full sun
Moisture: dry
Soil: well-drained; lean soils
Hardiness zone: 4
Maintenance: low
Size & Habit
Height (cm): 50
Spread (cm): 50
Habit: compact clump
Seasonal Interest
Flowering period: June–Aug
Seasonal interest: summer flowering
Foliage: green
Flower: orange
Ecology & Notes
Wildlife value: pollinators
Deer/Rabbit resistance: yes
Habitat: sunny borders; dry gardens; meadow-style plantings
Features: compact habit; vivid orange flowers; drought-tolerant once established
Notes: requires full sun and excellent drainage to persist; intolerant of irrigation and rich soils; cultural needs differ markedly from other milkweeds