Overview

Thermopsis lupinoides is a bushy, suckering herbaceous perennial in the genus Thermopsis, part of the Fabaceae family, with deciduous foliage. Thermopsis lupinoides grows best in full sun and partial shade, and tolerates most soils and any pH. Its UK hardiness is rated H6. Suggested uses include cottage and informal garden and flower borders and beds.

About

Thermopsis lupinoides is a bushy, suckering cultivar of the Thermopsis genus, which comprises herbaceous perennials resembling lupins with rhizomatous growth. This deciduous plant features upright stems and trifoliate foliage, producing yellow or purple flowers in spring and summer. It thrives in full sun or partial shade, favouring well-drained soils of various types and pH levels, and is hardy to UK zone H6. Suitable for cottage and informal gardens as well as flower borders and beds, it prefers moist but well-drained conditions and benefits from watering during establishment. Propagation is by seed sown in spring.

About the genus

Thermopsis is a genus of legumes, native to temperate North America and east Asia. They are herbaceous perennials and are known as goldenbanners or false-lupines.

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

Growing conditions

Best soil and position for Thermopsis

Sunlight
Full sun, Partial shade
Soil type
Chalk, Clay, Loam, Sand
Soil pH
Acid, Alkaline, Neutral
Soil moisture
Moist but well-drained
Aspect
South-facing, West-facing, East-facing
Exposure
Exposed, Sheltered
UK hardiness
H6

Plant details

Thermopsis lupinoides size, habit and characteristics

Plant type
Herbaceous Perennial
Habit
Bushy, Suckering
Foliage
Deciduous
Suggested uses
Cottage and informal garden, Flower borders and beds

Care notes

Pruning and caring for Thermopsis lupinoides

Propagation
Seed sown in spring
Pest resistance
Slugs, Aphids

Frequently asked questions

Where is the best place to plant Thermopsis lupinoides?

Thermopsis lupinoides prefers full sun and partial shade. It suits exposed and sheltered positions.

What soil does Thermopsis lupinoides need?

Thermopsis lupinoides is adaptable and grows happily in most soil types, including chalk, clay, loam and sand. It is happy in soil of any pH. Aim for soil that stays moist but well-drained.

Is Thermopsis lupinoides hardy in the UK?

Thermopsis lupinoides 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 Thermopsis lupinoides?

Seed sown in spring.

More in the Thermopsis genus

Browse all Thermopsis