Overview

Marshallia grandiflora is a plant with a clump-forming herbaceous perennial habit in the genus Marshallia, part of the Asteraceae family, with deciduous foliage. Marshallia grandiflora grows best in full sun and partial shade, and tolerates loam soils and any pH. Its UK hardiness is rated H4. Suggested uses include rock gardens, borders and woodland gardens.

About

Marshallia grandiflora, the Appalachian Barbara's buttons, is an extinct species of flowering plant in the genus Marshallia within the sunflower family. It was endemic to the Blue Ridge Mountains of North Carolina in the Eastern United States, in Henderson and Polk counties.

About the genus

Marshallia is a genus of plants in the tribe Helenieae within the family Asteraceae. Marshallia is native to the southeastern and south-central United States. A common name applied to most species in the genus is Barbara's buttons.

Wikipedia contributors, "Marshallia", CC BY-SA 4.0Marshallia

Growing conditions

Best soil and position for Marshallia

Sunlight
Full sun, Partial shade
Soil type
Loam
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
South-facing, East-facing, West-facing
Exposure
Sheltered
UK hardiness
H4

Plant details

Marshallia grandiflora size, habit and characteristics

Habit
Clump-forming herbaceous perennial
Foliage
Deciduous
Suggested uses
Rock gardens, Borders, Woodland gardens

Care notes

Pruning and caring for Marshallia grandiflora

Propagation
Division in spring, Root basal cuttings in spring
Pest resistance
Susceptible to slugs
Disease resistance
Some resistance to powdery mildews

Frequently asked questions

Where is the best place to plant Marshallia grandiflora?

Marshallia grandiflora prefers full sun and partial shade. It suits sheltered positions.

What soil does Marshallia grandiflora need?

Marshallia grandiflora grows best in loam soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Marshallia grandiflora hardy in the UK?

Marshallia grandiflora has an RHS hardiness rating of H4, meaning it is hardy through an average UK winter, tolerating -10 to -5°C.

How do I propagate Marshallia grandiflora?

Division in spring, Root basal cuttings in spring.