Overview
Lysimachia ephemrum is a herbaceous perennial in the genus Lysimachia, part of the Primulaceae family. Lysimachia ephemrum grows best in full sun and partial shade, and tolerates well-drained soil soils. Its UK hardiness is rated H4. Suggested uses include borders, cottage gardens and naturalistic plantings. It is native to Portugal Continental.
About
Lysimachia ephemrum is a flowering species in the genus Lysimachia (family Primulaceae) that blooms from June to September. The flowering window makes it useful for extending summer interest into early autumn. Observe its seasonal display when pairing with earlier- and later-flowering perennials. Time any pruning or division to avoid removing flower buds developing during its June–September season.
About the genus
Lysimachia is a genus consisting of 182 accepted species of flowering plants traditionally classified in the family Primulaceae. Based on a molecular phylogenetic study it was transferred to the family Myrsinaceae, before this family was later merged into the Primulaceae.
Wikipedia contributors, "Lysimachia", CC BY-SA 4.0 — Lysimachia
In the garden
Lysimachia ephemrum belongs to the genus Lysimachia within the Primulaceae and produces its flowering display between June and September. That defined bloom period is the best starting point when planning where to place it: situate it so the blooms fall between the finishes of spring-flowering plants and the starts of autumn perennials to maintain continuous colour and structure in the border. If you bring Lysimachia ephemrum into a garden, begin with a small, observational planting to understand its behaviour in your microclimate. Monitor when it begins and finishes flowering on your site so you can time any pruning, division or seed collection without removing developing buds. Seasonal records will also show whether it extends or shortens its flowering window under different conditions. Place individual plants in combinations that bridge early- and late-season interest; choose companions that will not obscure the flowering period from June to September. Where maintenance is required, plan tasks immediately after the final flowers in September so you do not interrupt the current season’s display. That scheduling keeps the plant’s summer-to-early-autumn contribution reliable from year to year.
Growing conditions
Best soil and position for Lysimachia
- Sunlight
- full sun, partial shade
- Soil type
- well-drained soil
- Soil moisture
- moist
- UK hardiness
- H4
Plant details
Lysimachia ephemrum size, habit and characteristics
- Plant type
- herbaceous perennial
- Suggested uses
- borders, cottage gardens, naturalistic plantings
- Native to
- Portugal Continental
Care notes
Pruning and caring for Lysimachia ephemrum
- Cultivation
- Prefers moist, well-drained soil in full sun to partial shade. Avoid waterlogged conditions. Can be propagated by seed or division.
- Pruning
- Cut back after flowering to maintain shape and encourage fresh growth.
- Propagation
- seed, division
Frequently asked questions
How do I grow Lysimachia ephemrum?
Prefers moist, well-drained soil in full sun to partial shade. Avoid waterlogged conditions. Can be propagated by seed or division.
Where is the best place to plant Lysimachia ephemrum?
Lysimachia ephemrum prefers full sun and partial shade.
What soil does Lysimachia ephemrum need?
Lysimachia ephemrum grows best in well-drained soil soil. Aim for soil that stays moist.
How do I prune Lysimachia ephemrum?
Cut back after flowering to maintain shape and encourage fresh growth.
Is Lysimachia ephemrum hardy in the UK?
Lysimachia ephemrum 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 Lysimachia ephemrum?
Seed, division.
