List 13 – Asclepias tuberosa

Asclepias tuberosa (butterfly weed)

Family: Apocynaceae

13.2 asclepias tuberosa

USDA Hardiness Zone: 4

Size:

  • 24 inches wide
  • 24 inches tall

Form:

Soil & Water requirements:

  • Dry to average moisture
  • Drought tolerant

Exposure:

  • Full sun (needs 6 or more hours of direct sunlight)

Leaves:

  • Simple, alternate leaf arrangement
  • Lanceolate, shinier on top and softer below
  • Stems are erect, hairy, and grow in clumps

Flowers:

  • Bright orange/tangerine coloured flowers
  • Beautiful, showy, unique flowers
  • Small flowers born in flat-topped clusters; five petals bending down with five hoods on top, pointing upward
  • Three month bloom period; early/mid-summer to late summer/early fall

Maintenance:

  • Remove seed pods if you wish to discourage self-seeding

Suitable uses:

  • Border planting
  • Wildlife planting; particularly to attract butterflies
  • Open woodland garden
  • Mass planting
  • Wildflower or meadow garden
  • Cottage garden

Potential pairings:

  • Colour compliments: hot pink to purple; blue; lavender

Attracts:

  • Monarch butterflies
  • Bees
  • Beneficial insects

Other:

  • Tuberous roots (hence the name ‘tuberosa’)
  • Poisonous milky latex sap in the stems and leaves
  • Overall, a striking perennial
  • Recommended spacing: 38-45cm

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