Overview
Linum monogynum is a bushy annual biennial in the genus Linum, part of the Linaceae family, with semi-evergreen foliage. Linum monogynum grows best in full sun, and tolerates most soils and any pH. Its UK hardiness is rated H4. Suggested uses include cottage and informal garden, patio and container plants, rock garden, gravel garden and flower borders and beds.
About
Linum monogynum, the rauhuia or New Zealand linen flax, is a species of flowering plant in the family Linaceae, which is endemic to New Zealand. It is a low-growing short-lived perennial or woody subshrub, growing up to 16 in (41 cm) tall. Its spear-shaped, leathery-gray to green leaves are 0.2–1 inches (5–25 mm) long. Its pretty white flowers are up to 1 in (2.5 cm) in diameter, and have five overlapping petals. In the garden it prefers full sun and most soil types. In UK gardens it is hardy through an average UK winter (RHS H4). Suggested uses include cottage and informal garden, patio and container plants, rock garden, gravel garden and flower borders and beds. It tolerates soil of any pH, well-drained conditions and south-facing, east-facing and west-facing aspects. Plant out after last frost in fertile, well-drained soil.
Wikipedia contributors, CC BY-SA 4.0 — Linum monogynum
Growing conditions
Best soil and position for Linum
- Sunlight
- Full sun
- Soil type
- Chalk, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Well-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H4
Plant details
Linum monogynum size, habit and characteristics
- Plant type
- Annual Biennial
- Habit
- Bushy
- Foliage
- Semi-evergreen
- Suggested uses
- Cottage and informal garden, Patio and container plants, Rock garden, Gravel garden, Flower borders and beds
Care notes
Pruning and caring for Linum monogynum
- Propagation
- Seed, Stem-tip cuttings
- Pest resistance
- Slugs and snails, Aphids
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Linum monogynum?
Linum monogynum prefers full sun. It suits exposed and sheltered positions.
What soil does Linum monogynum need?
Linum monogynum 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 well-drained.
Is Linum monogynum hardy in the UK?
Linum monogynum 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 Linum monogynum?
Seed, Stem-tip cuttings.
More in the Linum genus
- Linum capitatum

- Linum catharticumfairy flax

- Linum dolomiticum

- Linum flavumCrimean flax
- Linum narbonense 'Gentianoides'

- Linum nodiflorum

- Linum perenneperennial flax

- Linum rubrum