Shoot Logo
Take a photoPlans & pricingBook a demoGet started

Eutrochium purpureum (Grass root)

Other names: Gravel root, Gravel weed, Hardy ageratum, Indian gravel root, Indian sanicle, Joe Pye weed, Kidney root, Kidney wort, Marsh milkweed, Motherwort, Pride of the meadow, Purple boneset, Purple hemp agrimony, Queen of the meadow, Queen of the prairie, Quill wort, Sisters of healing, Skunkweed, Trumpet weed, Sweet-scented joe-pyeweed, Eupatorium purpureum

ShootChecker™

STOP: Make sure you get the “Right Plant, Right Place.”

90% of plants die because they were the wrong plant choice. Shoot helps you to save valuable time and money to get the right plant choices for any garden.

How ShootChecker™ works

Get the Right Plant, Right Place

1

Provide details about your garden or your client's garden conditions

2

ShootChecker™ will help you assess if it is the right plant

3

Save money with Right Plant, Right Place.

Get started Book a demo

Other Shoot features

Laptop, tablet and mobile devices

One-stop planning
Streamlined garden design and record-keeping all in one place

Monthly care advice
Receive tailored monthly care advice for plants in your garden

Present and collaborate
Share designs and care tasks with anyone

Join Shoot today to enjoy…

  • ShootChecker™
  • One-stop garden design
  • Monthly care advice for every plant in your garden
  • Saving money with Right Plant, Right Place

All you need to do is join.

Get started
Book a demo

Already a member? Sign in

Add to plant list
Species
E. purpureum is a clump-forming, deciduous perennial with erect, dark purple stems bearing lance-shaped to ovate, toothed, pointed, purple-flushed, mid-green leaves and domes panicles of pink, purple-pink, or white flowers from midsummer to early autumn.
Add to plant list
ShootChecker™
Season of interest

Flower

Spring Summer Autumn Winter
Flower

Foliage

Spring Summer Autumn Winter
Foliage
Height and spread

Height and spread

Size Max height Max spread To maturity
2.5 m 1 m 2-5 years
8 ft 3 ft 2-5 years

Where to grow

Soil type
  • Chalky
  • Clay
  • Loamy
  • Sandy
Soil drainage
  • Moist but well-drained
  • Well-drained
Soil pH
  • Acid
  • Alkaline
  • Neutral
Sunlight
  • Partial Shade
  • Full Sun
Aspect
  • East
  • West
  • South
Exposure
  • Exposed
  • Sheltered

Check to see if this is the Right Plant, Right Place with ShootChecker™

Open ShootChecker™

Additional plant details

Cultivation

Plant in any moist, moderately fertile soil in full sun to partial shade. Water during dry periods until the plant becomes established.

Suggested uses

Architectural, Beds and borders, Cottage/Informal, Prairie planting

UK hardiness

H7

USDA zones

Zone 4, Zone 5, Zone 6, Zone 7, Zone 8, Zone 9

Sunset zone

1, 2, 3, 4, 5, 6, 7, 8, 9, 14, 15, 16, 17

WUCOLS

North-Central Coastal = Unknown
Central Valley = Unknown
South Coastal = Unknown
South Inland = Unknown
High and Intermediate Desert = Unknown
Low Desert = Unknown

Foliage

Deciduous

Habit

Erect, Clump-forming

Native to

Eastern North America, Central North America

Drought tolerant

No

Flood tolerant

No

Toxicity

Not toxic

Plant care

Pruning

Pruning group 8

Propagation methods

Seed, Division

Pests

Generally pest-free.

Diseases

Generally disease-free.

Plant in moist soil between autumn and spring

Prune out unsightly shoots only (only when needed)

Divide and replant in spring

Plant in full sun or partial shade (autumn or spring)

Sow seeds in a cold frame in autumn

Sow seeds in a cold frame in spring

Other plants

Plants in this Genus (8)

Eutrochium

Select all Deselect all
0 selected Add to a plant list
0 selected
Eutrochium 'Euphoria Ruby'
View
Select
Eutrochium 'Euphoria Ruby' Joe pye weed 'Euphoria Ruby'
Eutrochium fistulosum (Albidum Group) 'Ivory Towers'
View
Select
Eutrochium fistulosum (Albidum Group) 'Ivory Towers' Eupatorium 'Ivory Towers'
Eutrochium dubium 'Little Joe'
View
Select
Eutrochium dubium 'Little Joe' Joe-pye weed 'Little Joe'
Eutrochium maculatum
View
Select
Eutrochium maculatum Joe-pye weed
Eutrochium fistulosum
View
Select
Eutrochium fistulosum Hollow joe-pye weed
Eutrochium purpureum
View
Select
Eutrochium purpureum Grass root
Eutrochium dubium
View
Select
Eutrochium dubium Coastal plain joe pye weed
Eutrochium dubium 'Baby Joe'
View
Select
Eutrochium dubium 'Baby Joe' Joe-pye weed 'Baby Joe'
Select all Deselect all Add to a plant list

Companion plants (10)

Select all Deselect all
0 selected Add to a plant list
0 selected
Magnolia 'Cameo'
View
Select
Magnolia 'Cameo' Magnolia 'Cameo'
Magnolia 'Old Port'
View
Select
Magnolia 'Old Port' Magnolia 'Old Port'
Magnolia 'Aphrodite'
View
Select
Magnolia 'Aphrodite' Magnolia 'Aphrodite'
Magnolia 'Porcelain Dove'
View
Select
Magnolia 'Porcelain Dove' Magnolia 'Porcelain Dove'
Magnolia 'Orchid'
View
Select
Magnolia 'Orchid' Magnolia 'Orchid'
Magnolia liliiflora
View
Select
Magnolia liliiflora Purple magnolia
Miscanthus sinensis 'Malepartus'
View
Select
Miscanthus sinensis 'Malepartus' Eulalia 'Malepartus'
Magnolia liliiflora 'Nigra'
View
Select
Magnolia liliiflora 'Nigra' Black lily magnolia
Macleaya microcarpa 'Spetchley Ruby'
View
Select
Macleaya microcarpa 'Spetchley Ruby' Plume poppy 'Spetchley Ruby'
Macleaya microcarpa 'Kelway's Coral Plume'
View
Select
Macleaya microcarpa 'Kelway's Coral Plume' Plume poppy 'Kelway's Coral Plume'
Select all Deselect all Add to a plant list

Related content

Discuss Eutrochium purpureum with other Shoot members
Read more
TOP