Overview
Eupatorium cannabinum is a clump forming herbaceous perennial in the genus Eupatorium, part of the Asteraceae family, with evergreen foliage. It typically grows around 1-1.5 metres tall and 1-1.5 metres wide, reaching full size in around 2-5 years. Eupatorium cannabinum grows best in full sun and partial shade, and tolerates clay and loam soils and any pH. Its UK hardiness is rated H7. Suggested uses include prairie planting, cottage and informal garden, wildlife gardens and flower borders and beds. It is native to North European Russia, South European Russia, Cyprus, Denmark, Hungary, Morocco, Belgium and Lebanon.
About
Eupatorium cannabinum, commonly known as hemp-agrimony, is a herbaceous plant in the family Asteraceae. It is a robust perennial native to Europe, Northwestern Africa, Turkey, Syria, Iran, Iraq, Jordan, the Caucasus and Central Asia, and grows in damp to wet habitats (also rarely on dry soils), usually in lowlands but known up to 410 m altitude in Britain. It is cultivated as an ornamental plant and occasionally found as a garden escape in scattered locations in China, the United States and Canada. It is extremely attractive to butterflies, much like buddleia. It grows to around 1-1.5 metres tall and 1-1.5 metres wide, carrying evergreen foliage. Grow it in full sun and partial shade and clay and loam soil. It tolerates soil of any pH, moist but well-drained, poorly-drained conditions and west-facing, south-facing, north-facing and east-facing aspects.
Wikipedia contributors, CC BY-SA 4.0 — Eupatorium cannabinum
About the genus
Eupatorium is a genus of flowering plants in the family Asteraceae, containing from 36 to 60 species depending on the classification system. Most are herbaceous perennials growing to 0.5–3 m (1.6–9.8 ft) tall. A few are shrubs.
Wikipedia contributors, "Eupatorium", CC BY-SA 4.0 — Eupatorium
Growing conditions
Best soil and position for Eupatorium
- Sunlight
- Full sun, Partial shade
- Soil type
- Clay, Loam
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Poorly-drained
- Aspect
- West-facing, South-facing, North-facing, East-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H7
Plant details
Eupatorium cannabinum size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Clump forming
- Foliage
- Evergreen
- Height
- 1-1.5 metres
- Spread
- 1-1.5 metres
- Time to full height
- 2-5 years
- Suggested uses
- Prairie planting, Cottage and informal garden, Wildlife gardens, Flower borders and beds
- Native to
- North European Russia, South European Russia, Cyprus, Denmark, Hungary, Morocco, Belgium, Lebanon
Care notes
Pruning and caring for Eupatorium cannabinum
- Propagation
- Seed sown in containers in spring or autumn, Division in spring
- Pest resistance
- Aphids, Slugs
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Eupatorium cannabinum?
Eupatorium cannabinum prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Eupatorium cannabinum need?
Eupatorium cannabinum grows best in clay and loam soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to poorly-drained.
How big does Eupatorium cannabinum grow?
Eupatorium cannabinum reaches a height of 1-1.5 metres and a spread of 1-1.5 metres. It takes around 2-5 years to reach full size.
Is Eupatorium cannabinum hardy in the UK?
Eupatorium cannabinum has an RHS hardiness rating of H7, meaning it is fully hardy throughout the UK, tolerating temperatures below -20°C.
How do I propagate Eupatorium cannabinum?
Seed sown in containers in spring or autumn, Division in spring.
More in the Eupatorium genus
Browse all Eupatorium →
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