Overview
Lysimachia ephemerum is a plant with a bushy, clump-forming, matforming habit in the genus Lysimachia, part of the Primulaceae family, with deciduous foliage. Lysimachia ephemerum grows best in full sun and partial shade, and tolerates clay and loam soils and any pH. Its UK hardiness is rated H6. Suggested uses include wildlife gardens and wildflower meadow.
About
Lysimachia ephemerum, the willow-leaved loosestrife or milky loosestrife, is a species of flowering plant in the primrose family Primulaceae, native to France, Spain, Portugal and Morocco. Against grey-green foliage this hardy herbaceous perennial bears erect racemes of delicate white flowers with purple stamens on 1 m (3.3 ft) stems in early summer.
Wikipedia contributors, CC BY-SA 4.0 — Lysimachia ephemerum
Growing conditions
Best soil and position for Lysimachia
- Sunlight
- Full sun, Partial shade
- Soil type
- Clay, Loam
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Poorly-drained
- Aspect
- South-facing, East-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
Lysimachia ephemerum size, habit and characteristics
- Habit
- Bushy, Clump-forming, Matforming
- Foliage
- Deciduous
- Suggested uses
- Wildlife gardens, Wildflower meadow
Care notes
Pruning and caring for Lysimachia ephemerum
- Propagation
- Seed, Division
- Pest resistance
- Generally pest-free
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Lysimachia ephemerum?
Lysimachia ephemerum prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Lysimachia ephemerum need?
Lysimachia ephemerum grows best in clay and loam soil. It is happy in soil of any pH. Aim for soil that stays moist but well-drained to poorly-drained.
Is Lysimachia ephemerum hardy in the UK?
Lysimachia ephemerum has an RHS hardiness rating of H6, meaning it is very hardy, tolerating -20 to -15°C across most of the UK.
How do I propagate Lysimachia ephemerum?
Seed, Division.
More in the Lysimachia genus
- Lysimachia acroadenia
- Lysimachia atropurpurea 'Beaujolais'

- Lysimachia christinae 'Zixin'

- Lysimachia clethroides

- Lysimachia congestiflora

- Lysimachia mauritiana

- Lysimachia minoricensis
- Lysimachia ephemrum