Overview

Lyonothamnus floribundus is a bushy trees in the genus Lyonothamnus, part of the Rosaceae family, with evergreen foliage. Lyonothamnus floribundus grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H4. Suggested uses include mediterranean climate plants, architectural, city and courtyard gardens, low maintenance and wall side borders.

About

Lyonothamnus floribundus, commonly known as Catalina ironwood, is an evergreen tree cultivar within the Lyonothamnus genus, noted for its bushy habit and robust, shiny foliage. This tree produces dense clusters of small, five-petalled flowers in spring and summer, adding seasonal interest. It thrives in fertile, well-drained soils such as clay, loam, or sand, and prefers full sun to partial shade in sheltered, south-, east-, or west-facing aspects. Suitable for Mediterranean-style gardens, city courtyards, and wall-side borders, it is hardy to UK zone H4 and requires low maintenance.

About the genus

Lyonothamnus is a monotypic genus of trees in the rose family containing the single living species Lyonothamnus floribundus, which is known by the common name Channel Island ironwood, and the subspecies L. f. ssp. aspleniifolius and L. f. ssp. floribundus.

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

Growing conditions

Best soil and position for Lyonothamnus

Sunlight
Full sun, Partial shade
Soil type
Clay, Loam, Sand
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

Lyonothamnus floribundus size, habit and characteristics

Plant type
Trees
Habit
Bushy
Foliage
Evergreen
Suggested uses
Mediterranean climate plants, Architectural, City and courtyard gardens, Low Maintenance, Wall side borders

Care notes

Pruning and caring for Lyonothamnus floribundus

Propagation
Seed sown in containers outdoors in autumn, greenwood cuttings in summer
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Lyonothamnus floribundus?

Lyonothamnus floribundus prefers full sun and partial shade. It suits sheltered positions.

What soil does Lyonothamnus floribundus need?

Lyonothamnus floribundus is adaptable and grows happily in most soil types, including clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Lyonothamnus floribundus hardy in the UK?

Lyonothamnus floribundus 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 Lyonothamnus floribundus?

Seed sown in containers outdoors in autumn, greenwood cuttings in summer.