Botanical profile

Eupatorium

Latin name
Eutrochium purpureum
Common name
Eupatorium
Type
Medicinal perennial
Family
Asteraceae

Eupatorium is a large, ornamental perennial with a natural habit, valued for its generous bloom in large pink, mauve, or purple clusters, depending on the variety. It adds significant height, volume, and movement to flowerbeds, naturalized gardens, prairie-style landscapes, and pollinator-friendly spaces. Its rustic and elegant appearance makes it an excellent plant for the back of a border, perfect for structuring a garden while adding a soft and spectacular bloom.

Easy to cultivate, eupatorium prefers a sunny or partial shade location, in rich, moist to wet, and well-drained soil. It is particularly well-suited to gardens where the soil retains some moisture, near ditches, ponds, cool areas, or in deep flowerbeds. Once established, it forms a robust and long-lasting clump that returns year after year, with an impressive presence in late summer and early autumn.

Highly attractive to butterflies, bees, and other pollinators, eupatorium is an ideal plant for creating a vibrant, biodiverse, and naturally blooming garden. Its large inflorescences add texture and pair very well with grasses, rudbeckias, coneflowers, monardas, asters, and other late-season perennials. It is an excellent perennial for gardeners seeking a tall, resilient, melliferous, and spectacular plant in a natural or country-style landscape.

Care guide

Care level
Easy

Choosing this plant

Main benefit
Large hardy perennial with airy blooms very attractive to pollinators
Pollinator garden, naturalistic planting, wet meadow, border backdrop, bank
Container growing
Container culture is only possible in a very large, deep container
Seasonal care
Cut back dry stems in fall or spring; divide clumps as needed; water during prolonged dry spells
Growing conditions

Light, soil, water and hardiness

Hardiness zone
3 to 8
Exposure
Full sun to partial shade
Watering
Regular; keep the soil moist without waterlogging
Humidity
Average to high humidity; prefers cool to moist soils
Fertilization
Compost in spring; light fertilization in poor soil
Soil type
Fertile, fresh to moist, well-drained soil
Soil pH
Slightly acidic to neutral
Minimum temperature
-30°C
Propagation method
Sowing or division
Plant appearance

Blooming, foliage and shape

Blooming period
Late summer to autumn
Flower color
Purplish pink to mauve
Fruiting
Feathery seeds at the end of the season
Foliage color
Green
Foliage type
Obsolete
Shape
Large upright clump with sturdy stems
Garden structure

Size and growth

Height
1.2 to 2 m (4 to 6 ft)
Width
90 to 120 cm (36 to 48 inches)
Growth rate
Average growth
Vegetable garden and yield

Companion planting, spacing and harvest

Companion plants
Monardas, coneflowers, asters, ornamental grasses
Plants to avoid
None known
Spacing
60 to 90 cm (24 to 36 inches)
Harvest period
July to September
Not recommended for pets
Not recommended for pets

Pets

Butterflies
Plants that attract butterflies

Butterflies

Deer
Less attractive or generally tolerated by deer

Deer

The availability of our plants varies depending on arrivals, seasons, nursery production and supplier availability. Some varieties may be offered for a limited time only, depending on their natural cycle or current stock. These plant profiles are designed to guide and inspire you when choosing plants for the garden, landscaping projects, containers or long-lasting outdoor arrangements.