Eupatorium cannabinum Plenum
Eupatorium cannabinum Plenum
Eupatorium cannabinum Plenum
Eupatorium cannabinum Plenum
Eupatorium cannabinum Plenum
Eupatorium cannabinum Plenum
Eupatorium cannabinum Plenum
Eupatorium cannabinum Plenum
Eupatorium cannabinum Plenum
Eupatorium canabinum Plenum
Hemp-agrimony, Water-hemp, Holy Rope, Hemlock Parsley, Hemp Weed
Planted in September, did not take.
Vanessa, 13/08/2018
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Available in 2 sizes
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Available in 2 sizes
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Available in 2 sizes
Available in 1 sizes
Available in 2 sizes
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Available in 1 sizes
This plant carries a 12 months recovery warranty
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We guarantee the quality of our plants for a full growing cycle, and will replace at our expense any plant that fails to recover under normal climatic and planting conditions.
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Description
Eupatorium cannabinum Plenum is a sturdy and tall herbaceous plant with double flowers in old rose to violet pink corymbs.
It is a herbaceous perennial plant in the Asteraceae family, also known as Hemp agrimony, Water-hemp, Holy Rope or Hemlock Parsley. It is the only Eupatorium species that grows naturally in Europe. All other varieties are American. It gets its name from the resemblance of its leaves to those of cannabis or Indian hemp. This beautiful deciduous foliage is a very deep dark green. The leaves, with their leaflets, are both divided and lanceolate like those of hemp. The plant proudly bears its heads on top of its strong wine-coloured stems, reaching a height of 1.20 to 1.50 m. It commonly reaches a width of 60 cm (24in). The corymb heads can reach a diameter of 10 to 15 cm (4 to 6in). It is true that flowering is a bit late, but it can enhance a garden throughout the summer until early autumn. It maintains its decorative aspect in winter thanks to its fruiting topped with small fluffy plumes that will disperse with the wind.
Eupatorium cannabinum Plenum is an easy-to-grow plant: it is resistant to insects and diseases. It is an extraordinary nectar plant. It attracts all pollinators, especially butterflies. It is hardy and can withstand temperatures as low as -15°C (5°F). It is also a plant called an indicator: in its natural state, it prefers moist to wet soils. It thus indicates a certain degree of soil moisture. It can therefore be planted by a pond. It adapts to all types of soils but prefers moist, rich, and heavy ones. They will be superb in a wild garden at the back of a flower bed, accompanied by astilbes, filipendulas, or willowherbs. Prune the stems in autumn to maintain a more compact habit.
Eupatorium derives its name from the Persian emperor Mithridates Eupator, who boasted of surviving the ingestion of poisons thanks to a powerful antidote. However, the knowledge of the time does not allow us to say with certainty whether the antidote in question was truly Eupatorium or Agrimonia, two plants that have strong formal similarities. Eupatorium cannabinum (not Agrimonia) was once used for its healing properties in Europe and traditionally in China for certain types of headaches.
Eupatorium cannabinum Plenum in pictures
Flowering
Foliage
Plant habit
Botanical data
Eupatorium
canabinum
Plenum
Asteraceae
Hemp-agrimony, Water-hemp, Holy Rope, Hemlock Parsley, Hemp Weed
Central Europe
Planting and care
This is a plant that is called an indicator plant: in its natural state, it tends to grow more readily in cool or even damp areas. It indicates a certain level of soil moisture. It adapts to all types of soils, but it definitely damp, fertile, and well-drained soil.
Planting period
Intended location
Care
Planting & care advice
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Hardiness is the lowest winter temperature a plant can endure without suffering serious damage or even dying. However, hardiness is affected by location (a sheltered area, such as a patio), protection (winter cover) and soil type (hardiness is improved by well-drained soil).
In temperate climates, pruning of spring-flowering shrubs (forsythia, spireas, etc.) should be done just after flowering.
Pruning of summer-flowering shrubs (Indian Lilac, Perovskia, etc.) can be done in winter or spring.
In cold regions as well as with frost-sensitive plants, avoid pruning too early when severe frosts may still occur.
The harvesting period indicated on our website applies to countries and regions in USDA zone 8 (France, England, Ireland, the Netherlands).
In colder areas (Scandinavia, Poland, Austria...) fruit and vegetable harvests are likely to be delayed by 3-4 weeks.
In warmer areas (Italy, Spain, Greece, etc.), harvesting will probably take place earlier, depending on weather conditions.
The sowing periods indicated on our website apply to countries and regions within USDA Zone 8 (France, UK, Ireland, Netherlands).
In colder areas (Scandinavia, Poland, Austria...), delay any outdoor sowing by 3-4 weeks, or sow under glass.
In warmer climes (Italy, Spain, Greece, etc.), bring outdoor sowing forward by a few weeks.
The planting period indicated on our website applies to regions in USDA Zone 9a (East Coast and Midlands: Dublin, Wexford, Waterford, Kilkenny, Portlaoise). It will vary depending on where you live:
- On the west coast and in the north-west (Galway, Limerick, Sligo, Donegal, Westport), delay planting by 1 to 2 weeks in spring and bring it forward by 1 to 2 weeks in autumn compared to the dates given, preferably choosing periods without strong winds.
- In the inland hills and plateaus (Wicklow Mountains, Macgillycuddy’s Reeks, Connemara, Killarney), it is best to plant in spring (April–May) or autumn (September–October), avoiding periods of waterlogged soil in winter and strong winds, which pose the main risk to newly planted trees in these areas.
The flowering period indicated on our website applies to regions in USDA Zone 9a, such as the East Coast and Midlands, including Dublin, Wexford, Waterford, Kilkenny and Portlaoise.
This will vary depending on where you live:
- On the west coast and in the northwest (Galway, Limerick, Sligo, Donegal and Westport), it will be delayed by one to two weeks compared to the given dates, due to stronger Atlantic winds and less spring sunshine.
- In the inland hills and plateaus (the Wicklow Mountains, the Macgillycuddy's Reeks, Connemara and Killarney), flowering will be delayed by two to three weeks. Flowering mainly occurs between May and July, with the limiting factors being less frost and more of the excessive humidity, strong winds and lack of sunshine that are characteristic of these areas.
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