Eupatorium cannabinum
hemp agrimony
- approx 200 seeds
- £2.54 £2.99
- In stock (shipped within 3-5 working days)
- 1 litre aquatic pot
- £12.74 £14.99
- available to order from summer
- 3 × 1 litre aquatic pots
- £39.99 £13.33 each
- available to order from summer
- 3 litre aquatic pot
- £34.99
- available to order from summer
- 5 litre aquatic pot
- £49.99
- available to order from summer
Delivery options
- Seed Packets (only) £2.99
- Position: full sun or partial shade
- Soil: any moist soil
- Rate of growth: average
- Flowering period: July to September
- Hardiness: fully hardy
Robust, attractive and easy to grow, this native perennial is ideal for mixed planting schemes. The red-flushed stems of hemp agrimony support handsome, lobed foliage, and they’re crowned in summer, with large, flat-topped clusters of pink, purple or white flowers, which are a magnet for butterflies.
Plant Eupatorium cannabinum in full sun or partial shade in reliably moist soil, or sink aquatic pots into a pond margin with 5-10cm (2-4in) of water above the crown. Space 60-90cm (24-36in) apart and water well to keep the soil damp at all times.
Cut back old stems in late winter or early spring and divide every 3-4 years to maintain vigour. To keep plants controlled, leave them in aquatic pots when planting or lift and split congested clumps regularly to prevent excessive spread.
Cut back old stems in late winter or early spring and divide every 3-4 years to maintain vigour. To keep plants controlled, leave them in aquatic pots when planting or lift and split congested clumps regularly to prevent excessive spread.
In spring, surface sow seeds in trays filled with a good seed mix, lightly pressing them into the compost. Maintaining temperatures around 18-20°C (64-68°F), but if germination has not begun after 6 weeks, cold stratify by placing the seed tray in the fridge for 4 weeks before returning to warmer conditions.
When large enough to handle, grow on in individual pots and gradually gradually acclimatise before planting out. When in growth, cut back and compost the stems after flowering, and remove unwanted seedlings as they appear.
When large enough to handle, grow on in individual pots and gradually gradually acclimatise before planting out. When in growth, cut back and compost the stems after flowering, and remove unwanted seedlings as they appear.