Thermopsis lanceolata
tapered false lupin
A clump-forming herbaceous perennial with light green, trifoliate leaves with soft, silvery hairs. In late spring produces upright spires of pale yellow, lupin-like flowers
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Size
Ultimate height
0.5–1 metresTime to ultimate height
2–5 yearsUltimate spread
0.5–1 metresGrowing conditions
Moisture
Moist but well–drained, Well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Yellow | Green | ||
|---|---|---|---|---|
| Summer | Green | |||
| Autumn | Green | |||
| Winter |
Position
- Full sun
- Partial shade
Aspect
West–facing or East–facing or South–facing
Exposure
Exposed or Sheltered Hardiness
H7Botanical details
- Family
- Fabaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Bushy
- Potentially harmful
- Harmful if eaten. Wear gloves and other protective equipment when handling Pets (dogs): Harmful if eaten - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
Thermopsis are lupin-like rhizomatous herbaceous perennials with erect stems, leaves with three leaflets, and yellow or purple flowers
- Name status
Correct
- Plant range
- Asia
How to grow
Cultivation
Grows best in light, fertile, well-drained, loamy soil, but tolerates a range of conditions. Usually long-lived, with tough roots that resent disturbance
Propagation
Propagate by seed sown in spring, moving seedlings into their final position as young as possible
Suggested planting locations and garden types
- Cottage and informal garden
- Flower borders and beds
Pruning
Cut down in autumn
Pests
Diseases
Generally disease-free
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