Overview

Libertia chilensis is a tufted herbaceous perennial in the genus Libertia, part of the Iridaceae family, with evergreen foliage. It typically grows around 0.5-1 metres tall and 0.5-1 metres wide, reaching full size in around 2-5 years. Libertia chilensis grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H3. Suggested uses include city and courtyard gardens, cottage and informal garden, gravel garden, patio and container plants, prairie planting, cut flowers and flower borders and beds.

About

Libertia chilensis, synonym Libertia formosa, called the New Zealand satin flower, snowy mermaid, or Chilean-iris, is a species of flowering plant in the iris family, Iridaceae, native to the Juan Fernández Islands, central and southern Chile, and southern Argentina. It can also be found growing wild in the San Francisco Bay Area and San Bernardino County in California, where it is an introduced species. A rhizomatous evergreen perennial, it has gained the Royal Horticultural Society's Award of Garden Merit. Mature plants reach roughly 0.5-1 metres tall and 0.5-1 metres wide, carrying evergreen foliage. In the garden it prefers full sun and most soil types. It tolerates soil of any pH, moist but well-drained conditions and south-facing aspects.

Wikipedia contributors, CC BY-SA 4.0Libertia chilensis

About the genus

Libertia is a genus of monocotyledonous plants in the family Iridaceae, first described as a genus in 1824. It is native to South America, Australia, New Guinea, and New Zealand. Eight species are endemic to New Zealand.

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

Growing conditions

Best soil and position for Libertia

Sunlight
Full sun
Soil type
Chalk, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
South-facing
Exposure
Sheltered
UK hardiness
H3

Plant details

Libertia chilensis size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Tufted
Foliage
Evergreen
Height
0.5-1 metres
Spread
0.5-1 metres
Time to full height
2-5 years
Suggested uses
City and courtyard gardens, Cottage and informal garden, Gravel garden, Patio and container plants, Prairie planting, Cut flowers, Flower borders and beds

Care notes

Pruning and caring for Libertia chilensis

Propagation
Seed, Division
Pest resistance
Generally pest-free
Disease resistance
Generally disease-free

Frequently asked questions

Where is the best place to plant Libertia chilensis?

Libertia chilensis prefers full sun. It suits sheltered positions.

What soil does Libertia chilensis need?

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

How big does Libertia chilensis grow?

Libertia chilensis reaches a height of 0.5-1 metres and a spread of 0.5-1 metres. It takes around 2-5 years to reach full size.

Is Libertia chilensis hardy in the UK?

Libertia chilensis has an RHS hardiness rating of H3, meaning it is half-hardy, tolerating -5 to 1°C, and may need winter protection in colder areas.

How do I propagate Libertia chilensis?

Seed, Division.

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