Overview

Sullivantia sullivantii is a plant with a creeping habit in the genus Sullivantia, part of the Saxifragaceae family, with deciduous foliage. Sullivantia sullivantii grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H4. Suggested uses include rock gardens and ground cover.

About

Sullivantia sullivantii is a creeping deciduous plant within the genus Sullivantia, part of the Saxifragaceae family. It thrives in full sun on a south-facing, sheltered aspect, favouring fertile, well-drained loam soil with neutral pH and consistent moisture. Hardy to UK zone H4, this cultivar is suitable for rock gardens and as ground cover. It is particularly attractive during spring and summer. Propagation can be achieved by division or seed.

About the genus

Sullivantia, commonly called coolwort, is a genus of flowering plants in the saxifrage family. It is a small genus, comprising only 3–4 species of perennial herbs all native to the northwestern and east-central United States. Sullivantia is most notable for having disjunct distributions primarily restricted to along the Pleistocene glacial margin.

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

Growing conditions

Best soil and position for Sullivantia

Sunlight
Full sun
Soil type
Loam
Soil pH
Neutral
Soil moisture
Moist
Aspect
South-facing
Exposure
Sheltered
UK hardiness
H4

Plant details

Sullivantia sullivantii size, habit and characteristics

Habit
Creeping
Foliage
Deciduous
Suggested uses
Rock gardens, ground cover

Care notes

Pruning and caring for Sullivantia sullivantii

Propagation
Division, seed
Pest resistance
High
Disease resistance
High

Frequently asked questions

Where is the best place to plant Sullivantia sullivantii?

Sullivantia sullivantii prefers full sun. It suits sheltered positions.

What soil does Sullivantia sullivantii need?

Sullivantia sullivantii grows best in loam soil. It prefers neutral soil. Aim for soil that stays moist.

Is Sullivantia sullivantii hardy in the UK?

Sullivantia sullivantii 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 Sullivantia sullivantii?

Division, seed.