Overview
Streptopus amplexifolius var. americanus is a clump forming herbaceous perennial in the genus Streptopus, part of the Liliaceae family, with deciduous foliage. Streptopus amplexifolius var. americanus grows best in full shade and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H4. Suggested uses include cottage and informal garden and flower borders and beds.
About
Streptopus amplexifolius var. americanus is a clump-forming cultivar of the Streptopus genus, belonging to the Liliaceae family. This deciduous plant thrives in full or partial shade, favouring sheltered, east-, north-, or west-facing aspects. It grows best in moist but well-drained soils, including chalk, loam, and sand, with a pH ranging from acid to alkaline. Hardy to UK zone H4, it is suitable for cottage and informal gardens as well as flower borders and beds. Interest is mainly in spring and summer, with cultivation requiring watering during establishment and propagation by division in spring or seed, though germination can be erratic.
About the genus
Streptopus is a Eurasian and North American genus of flowering plants in the lily family, found primarily in colder and temperate regions. Members of the genus are often referred to as twistedstalk. It is one of the shade-loving genera of the lily family.
Wikipedia contributors, "Streptopus", CC BY-SA 4.0 — Streptopus
Growing conditions
Best soil and position for Streptopus
- Sunlight
- Full shade, Partial shade
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained
- Aspect
- East-facing, North-facing, West-facing
- Exposure
- Sheltered
- UK hardiness
- H4
Plant details
Streptopus amplexifolius var. americanus size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Deciduous
- Suggested uses
- Cottage and informal garden, Flower borders and beds
Care notes
Pruning and caring for Streptopus amplexifolius var. americanus
- Propagation
- Division in spring, Seed (germination erratic)
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Streptopus amplexifolius var. americanus?
Streptopus amplexifolius var. americanus prefers full shade and partial shade. It suits sheltered positions.
What soil does Streptopus amplexifolius var. americanus need?
Streptopus amplexifolius var. americanus is adaptable and grows happily in most soil types, including chalk, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.
Is Streptopus amplexifolius var. americanus hardy in the UK?
Streptopus amplexifolius var. americanus 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 Streptopus amplexifolius var. americanus?
Division in spring, Seed (germination erratic).
More in the Streptopus genus
- Streptopus amplexifoliusliver berry
- Streptopus parviflorus
- Streptopus roseusrose mandarin
- Streptopus simplexTwistedstalk
