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Asclepias syriaca

Silkweed

Garden

Wishlist

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Features

  • BloomsJuly to September
  • Height1m to 2m
  • Spread0.5m to 1m
  • Growth HabitBranched clump
  • Flower ColourGreen, purple, pink, white
  • Leaf ColourMid green

Description

Asclepias syriaca (Silkweed). This is an upright spreading perennial; the leaves are oblong-ovate and medium green. The flowers are produced in axillary umbels of medium green, purple-pink, white blooms in the summer.

Characteristics

Perennial, Deciduous or Evergreen, Fragrant

Origin

E.N.America

Interest and use

Grown for their flowers

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Needs

  • LightFull sun
  • HardinessFully hardy (min -15°C)
  • SoilWell drained, Light, Medium, Sandy
  • WaterSemi-moist

Cultivation

When grown under glass use a loam-based compost with full light. When grown outdoors grow in fertile well-drained loamy soil, with a position in full sun.

Propagation

Sow the seeds of tender species in late winter, you can sow perennial species in the spring.

Pests, diseases or disorders

Watch out for whitefly.

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