Celmisia semicordata subsp. semicordata — Mat-forming, Rosette-forming, Bushy

Overview

Celmisia semicordata subsp. semicordata is a mat-forming, rosette-forming, bushy alpine rockery in the genus Celmisia, part of the Asteraceae family, with evergreen foliage. Celmisia semicordata subsp. semicordata grows best in full sun and partial shade, and tolerates loam and sand soils and acid pH. Its UK hardiness is rated H5. Suggested uses include alpine rockery, city and courtyard gardens, architectural, patio and container plants, rock garden, flower borders and beds, underplanting of roses and shrubs and wall side borders.

About

Celmisia semicordata subsp. semicordata is a cultivar of the Celmisia genus, which comprises evergreen perennials and sub-shrubs forming mats or rosettes. This alpine rockery plant features soft, silvery evergreen foliage and produces daisy-like flowers typically white with yellow centres. It thrives in full sun or partial shade and prefers moist but well-drained, acidic soils such as loam or sand. Hardy to UK zone H5, it is suitable for various garden settings including rock gardens, patios, and flower borders, offering winter interest with its distinctive form and foliage.

About the genus

Celmisia is a genus of perennial herbs or subshrubs, in the family Asteraceae. Most of the species are endemic to New Zealand; several others are endemic to Australia.Species and nothospecies

Wikipedia contributors, "Celmisia", CC BY-SA 4.0 — Celmisia

Growing conditions

Best soil and position for Celmisia

Sunlight: Full sun, Partial shade
Soil type: Loam, Sand
Soil pH: Acid
Soil moisture: Moist but well-drained
Aspect: North-facing, East-facing, South-facing, West-facing
Exposure: Exposed, Sheltered
UK hardiness: H5

Plant details

Celmisia semicordata subsp. semicordata size, habit and characteristics

Plant type: Alpine Rockery
Habit: Mat-forming, Rosette-forming, Bushy
Foliage: Evergreen
Suggested uses: Alpine rockery, City and courtyard gardens, Architectural, Patio and container plants, Rock garden, Flower borders and beds, Underplanting of roses and shrubs, Wall side borders

Care notes

Pruning and caring for Celmisia semicordata subsp. semicordata

Propagation: Seed sown in containers in an open frame as soon as ripe, Divide in spring, Root individual rosettes in spring
Pest resistance: Generally pest-free
Disease resistance: Generally disease-free

Frequently asked questions

Where is the best place to plant Celmisia semicordata subsp. semicordata?

Celmisia semicordata subsp. semicordata prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Celmisia semicordata subsp. semicordata need?

Celmisia semicordata subsp. semicordata grows best in loam and sand soil. It prefers acid soil. Aim for soil that stays moist but well-drained.

Is Celmisia semicordata subsp. semicordata hardy in the UK?

Celmisia semicordata subsp. semicordata has an RHS hardiness rating of H5, meaning it is hardy in most of the UK, tolerating -15 to -10°C.

How do I propagate Celmisia semicordata subsp. semicordata?

Seed sown in containers in an open frame as soon as ripe, Divide in spring, Root individual rosettes in spring.

More in the Celmisia genus

Browse all Celmisia →