About
An annual climber to about 2m with scented, waved, deep maroon flowers over a long period in summer and autumn.
About the 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
Growing conditions
SunlightFull sun
Soil typeChalk, Clay, Loam, Sand
Soil pHAcid, Alkaline, Neutral
Soil moistureMoist but well-drained
AspectSouth-facing, West-facing, East-facing
ExposureSheltered
UK hardinessH3
Plant details
Plant typeClimber Wall Shrub, Annual Biennial
HabitClimbing
FoliageDeciduous
Height1.5-2.5 metres
Spread0.1-0.5 metres
Time to full height1 year
Suggested usesCity and courtyard gardens, Cottage and informal garden
FragranceFlower
ToxicityPods 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
Care notes
CultivationPlant out seedlings 20-30cm apart after the final spring frost in well-drained but moisture-retentive humus-rich soil in full sun or very light dappled shade, and provide support. See sweetpea cultivation
PruningFor a long and regular supply of blooms, cut flowers frequently, before they produce seed pods
PropagationPropagate by seed: in milder areas sow during autumn, and overwinter the young plants in a cold frame or unheated glasshouse, or in colder areas sow in late March or April; plant out after the final spring frost. See sowing seeds indoors for further advice
Pest resistanceMay be susceptible to aphids, slugs and snails
Disease resistanceMay be susceptible to powdery mildews, Fusarium wilt and sweet pea viruses