Hemp agrimony (Eupatorium cannabinum)
Care, watering, light and tips for Hemp agrimony on Floravia.
Quick facts
- Family: Asteraceae
- Difficulty: Easy to care for
- Watering: every 3 days
- Light: Full sun
- Temperature: 0–35 °C
- Toxicity: Toxic to pets
About Hemp agrimony
Eupatorium cannabinum, commonly known as hemp-agrimony, is a herbaceous perennial native to Europe and Asia. It is characterized by its sturdy stems and palmate leaves reminiscent of cannabis, topped with dense inflorescences of pink or purple flowers in late summer. It is ideal for wetland gardens, pond edges, or moist, sunny areas, bringing a wild touch and attracting pollinators.
Native range
Europe and Western Asia
Care tips
This plant thrives in full sun to partial shade, requiring consistently moist or even waterlogged soils for optimal growth. It prefers rich, well-draining substrates with plenty of organic matter. A common mistake is planting it in dry soils, which will limit its development and flowering. It tolerates most soil types but benefits from an annual compost application.
How to save a dying Hemp agrimony
- Warning signs
- Wilted, yellowing, or dry-edged leaves; no flowering; soft or blackened stems. May indicate under or overwatering.
- First aid
- Check soil moisture. If dry, water thoroughly. If waterlogged, drain and aerate. Ensure good light and moderate temperature.
- What kills it
- Consistently dry or overly waterlogged soil. Also, lack of light or extreme temperatures (too hot or cold).
- Can it be saved?
- Yes, if roots aren't completely rotted or stems entirely dead. Act quickly by correcting watering and location.