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Eupatorium rugosum Chocolate

Eupatorium altissima Chocolate
White Snakeroot

4,5/5
12 reviews
2 reviews
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1 reviews
1 reviews

The young plant hasn't taken root! I'm very disappointed.

Odile, 01/05/2022

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This plant carries a 12 months recovery warranty

More information

Remarkable, this Eupatorium has a superb reddish-purple foliage, turning green in summer.  Its covered with small white flowers in light inflorescences in late summer. It is a tall and beautiful perennial plant that prefers moist soil, allowing for interesting associations and contrasts in the background of a flowerbed. Its foliage will be more colourful in a sunny aspect.
Flower size
5 cm
Height at maturity
1.20 m
Spread at maturity
60 cm
Exposure
Sun, Partial shade
Hardiness
Hardy down to -29°C
Soil moisture
Moist soil, Damp soil
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Best planting time April, October
Recommended planting time February to April, September to November
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Flowering time September to October
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Description

Eupatorium rugosum Chocolate, also known as Ageratina altissima Chocolate, is a variety of Eupatorium that is interesting for its opulent very dark foliage, as well as its late, white and light flowering, which is a valuable source of nectar for pollinators at this time of year. It is a perennial plant of beautiful stature, ornamental, requiring little maintenance, which thrives in a soft and loose garden soil that remains slightly moist.

Eupatorium rugosum Chocolate belongs to the Asteraceae family. Its wild ancestor is a perennial plant native to eastern North America, which thrives in wet to marshy places. A little slow to establish, this Eupatorium Chocolate eventually forms a beautiful clump that can reach 1.20m (4ft) in height when flowering, with a spread of 70cm (28in). Its above-ground vegetation is deciduous, emerging from the ground in spring and drying up at the end of autumn. The foliage of Ageratina 'Chocolate' takes on shades of brown-purple from June-July to September, then becomes greener during flowering. This foliage is composed of large leaves measuring 4 to 12cm (2 to 5in) long. It reaches its full size and wonderful coloration in full sun. The flowering usually starts in late September and continues into October. It takes the form of small white flowers grouped in light corymbs, measuring 4 to 6cm (2in) in diameter, carried on purple stems. It is a very hardy plant. However, the young spring shoots are sensitive to frost.

This Chocolate Eupatorium can be placed both as a specimen plant or in the back of a border. It can also be planted in flower beds and its flowers can be used for making bouquets. This tall perennial forms beautiful associations with autumn asters, golden or very light foliage for contrasting colours. It is a plant that delights butterflies.

According to tradition, Eupatorium is a magical plant that brings love and seduction. We haven't tried it. It is also the herb of Saint Cunegonde, an Empress of Germany from the 11th century, saint and healer.

Eupatorium rugosum Chocolate in pictures

Eupatorium rugosum Chocolate (Flowering) Flowering
Eupatorium rugosum Chocolate (Foliage) Foliage
Eupatorium rugosum Chocolate (Plant habit) Plant habit

Flowering

Flower colour white
Flowering time September to October
Flower size 5 cm
Good for cut flowers Cut flower blooms

Foliage

Foliage persistence Deciduous
Foliage colour chocolate

Plant habit

Height at maturity 1.20 m
Spread at maturity 60 cm
Growth rate normal

Botanical data

Genus

Eupatorium

Species

altissima

Cultivar

Chocolate

Family

Asteraceae

Other common names

White Snakeroot

Origin

Cultivar or hybrid

Product reference77341

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Planting and care

Eupatorium rugosum Chocolate thrives in full sun as well as partial shade, but its foliage will be more colourful in the sun. Plant it in ordinary soil, even limestone, that is always slightly damp, but not clay (add compost to the planting soil). It is a water-hungry plant. Water it generously during the growing season if necessary, as it wilts quickly when it is hot and dry. Remove faded flowers to prolong its flowering. After flowering, lightly prune the stems that compromise its symmetry. Prune dry vegetation in late winter.

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Planting period

Best planting time April, October
Recommended planting time February to April, September to November

Intended location

Suitable for Meadow, Woodland edge
Type of use Border
Hardiness Hardy down to -29°C (USDA zone 5) Show map
Ease of cultivation Amateur
Planting density 5 per m2
Exposure Sun, Partial shade
Soil pH Neutral
Soil type Clayey (heavy), Clayey-chalky (heavy and alkaline), Silty-loamy (rich and light)
Soil moisture Moist soil, Damp soil, Rich, fertile

Care

Pruning instructions Prune the faded flowers at the end of summer to prevent the plant from self-seeding. At the end of winter, prune the tall flower stalks down to ground level.
Pruning Pruning recommended once a year
Pruning time February to March, August to September
Disease resistance Good
Overwinter Can be left in the ground
4,5/5

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