Overview

Asclepias hirtella is a plant with a bushy habit in the genus Asclepias, part of the Apocynaceae family, with deciduous foliage. Asclepias hirtella grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H4. Suggested uses include cottage and informal garden and prairie planting.

About

Asclepias hirtella, commonly called the tall green milkweed, is a species of flowering plant in the milkweed genus and dogbane family (Apocynaceae). It is native to Canada and the United States, where its range is concentrated in the Midwest and Upper South.

Wikipedia contributors, CC BY-SA 4.0Asclepias hirtella

Growing conditions

Best soil and position for Asclepias

Sunlight
Full sun
Soil type
Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained or Poorly-drained
Aspect
South-facing, West-facing
Exposure
Sheltered
UK hardiness
H4

Plant details

Asclepias hirtella size, habit and characteristics

Habit
Bushy
Foliage
Deciduous
Suggested uses
Cottage and informal garden, Prairie planting

Care notes

Pruning and caring for Asclepias hirtella

Propagation
Seed, Division, Root basal cuttings in spring
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Asclepias hirtella?

Asclepias hirtella prefers full sun. It suits sheltered positions.

What soil does Asclepias hirtella need?

Asclepias hirtella is adaptable and grows happily in most soil types, including clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained or poorly-drained.

Is Asclepias hirtella hardy in the UK?

Asclepias hirtella has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.

How do I propagate Asclepias hirtella?

Seed, Division, Root basal cuttings in spring.

More in the Asclepias genus

Browse all Asclepias