Lathyrus odoratus 'Lady Grisel Hamilton'
sweet pea 'Lady Grisel Hamilton'
An annual climber, to around 2m high, with curling tendrils and pairs of green leaves. An old-fashioned variety, producing small, scented, pale lavender-coloured flowers in summer
Size
Ultimate height
1.5–2.5 metresTime to ultimate height
1 yearUltimate spread
0.1–0.5 metresGrowing conditions
Moisture
Moist but well–drainedpH
Acid, Alkaline, NeutralColour & scent
| Stem | Flower | Foliage | Fruit | |
| Spring | Green | |||
|---|---|---|---|---|
| Summer | Purple | Green | ||
| Autumn | ||||
| Winter |
Position
- Full sun
- Partial shade
Aspect
South–facing or West–facing
Exposure
Sheltered Hardiness
H3Botanical details
- Family
- Fabaceae
- Native to GB / Ireland
- No
- Foliage
- Deciduous
- Habit
- Climbing
- Potentially harmful
- Pods and seeds are not edible. Wear gloves and other protective equipment when handling. Pets: Pods and seeds are not edible. For further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
- Genus
Lathyrus can be annuals or herbaceous or evergreen perennials, mostly climbing, with pinnate leaves ending in a tendril, and showy pea-like flowers, fragrant in some species
- Name status
Accepted
How to grow
Cultivation
Grow in humus-rich, fertile, well-drained soil in full sun or light dappled shade. Provide support and feed with a balanced liquid fertilizer every two weeks when in growth. See sweetpea cultivation for more detailed advice See https://www.rhs.org.uk/plants/trials-awards for further information about RHS plant trials and awards
Propagation
Propagate by seed. Sow in a cold frame in early autumn, early spring or in-situ in mid-spring. See sowing seeds indoors for further advice
Suggested planting locations and garden types
- City and courtyard gardens
- Cottage and informal garden
- Patio and container plants
- Climber and wall shrubs
- Cut flowers
- Wall side borders
Pruning
Cut regularly to encourage more flowers; allowing seed pods to form will stop plants from flowering
Pests
Diseases
May be susceptible to powdery mildews, Fusarium wilt and sweet pea viruses
Get involved
The Royal Horticultural Society is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.