Overview
Lysimachia congestiflora is a bushy, clump forming, columnar upright herbaceous perennial in the genus Lysimachia, part of the Primulaceae family, with deciduous foliage. Lysimachia congestiflora grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include city and courtyard gardens, coastal, cottage and informal garden, flower borders and beds, wildlife gardens and wildflower meadow.
About
Lysimachia congestiflora is a herbaceous perennial cultivar within the Lysimachia genus, known for its bushy, clump-forming, and columnar upright habit. This deciduous plant thrives in full sun or partial shade, favouring south- or west-facing aspects and tolerating a range of soil types from clay to sand, with varying pH levels. It is hardy to UK zone H6 and suitable for diverse garden settings including city, coastal, cottage, and wildlife gardens. Lysimachia congestiflora is best planted in well-drained soil and requires watering during establishment, with propagation possible by seed or division.
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
Growing conditions
Best soil and position for Lysimachia
- Sunlight
- Full sun, Partial shade
- Soil type
- Clay, Loam, Sand
- Soil pH
- Acid, Alkaline, Neutral
- Soil moisture
- Moist but well-drained, Poorly-drained
- Aspect
- South-facing, West-facing
- Exposure
- Exposed, Sheltered
- UK hardiness
- H6
Plant details
Lysimachia congestiflora size, habit and characteristics
- Plant type
- Herbaceous Perennial
- Habit
- Bushy, Clump forming, Columnar upright
- Foliage
- Deciduous
- Suggested uses
- City and courtyard gardens, Coastal, Cottage and informal garden, Flower borders and beds, Wildlife gardens, Wildflower meadow
Care notes
Pruning and caring for Lysimachia congestiflora
- Propagation
- Seed, Division
- Pest resistance
- Slugs and snails
- Disease resistance
- Generally disease-free
Frequently asked questions
Where is the best place to plant Lysimachia congestiflora?
Lysimachia congestiflora prefers full sun and partial shade. It suits exposed and sheltered positions.
What soil does Lysimachia congestiflora need?
Lysimachia congestiflora 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 to poorly-drained.
Is Lysimachia congestiflora hardy in the UK?
Lysimachia congestiflora 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 congestiflora?
Seed, Division.
More in the Lysimachia genus
- Lysimachia atropurpurea 'Beaujolais'

- Lysimachia ephemrum
- Lysimachia leschenaultiicarmine-flowered loosestrife