Overview

Oxytropis lambertii is a plant with a low-growing perennial habit in the genus Oxytropis, part of the Fabaceae family, with deciduous foliage. Oxytropis lambertii grows best in full sun, and tolerates loam soils and neutral pH. Its UK hardiness is rated H4. Suggested uses include rock gardens and alpine beds.

About

Oxytropis lambertii, commonly known as locoweed or purple loco, is a low-growing perennial from the Fabaceae family. This deciduous plant thrives in full sun with a south-facing, sheltered aspect and prefers well-drained, neutral loam soil. Hardy to UK zone H4, it is suitable for rock gardens and alpine beds. Best planted in well-drained soil with watering during establishment, it can be propagated by seed or division and offers seasonal interest in spring and summer.

About the genus

Oxytropis is a genus of plants in the legume family. It includes over 600 species native to subarctic to temperate regions of North America and Eurasia. It is one of three genera of plants known as locoweeds, and are notorious for being toxic to grazing animals.

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

Growing conditions

Best soil and position for Oxytropis

Sunlight
Full sun
Soil type
Loam
Soil pH
Neutral
Soil moisture
Well-drained
Aspect
South-facing
Exposure
Sheltered
UK hardiness
H4

Plant details

Oxytropis lambertii size, habit and characteristics

Habit
Low-growing perennial
Foliage
Deciduous
Suggested uses
Rock gardens, alpine beds

Care notes

Pruning and caring for Oxytropis lambertii

Propagation
Seed, division
Pest resistance
Resistant to most pests
Disease resistance
Resistant to most diseases

Frequently asked questions

Where is the best place to plant Oxytropis lambertii?

Oxytropis lambertii prefers full sun. It suits sheltered positions.

What soil does Oxytropis lambertii need?

Oxytropis lambertii grows best in loam soil. It prefers neutral soil. Aim for soil that stays well-drained.

Is Oxytropis lambertii hardy in the UK?

Oxytropis lambertii 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 Oxytropis lambertii?

Seed, division.