Lathyrus latifolius

RHS Plant Profile

broad-leaved everlasting pea

Other common names

everlasting pea, hardy sweet pea, perennial pea

Climber Wall Shrub

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A vigorous climbing herbaceous perennial to 2m, with winged stems and paired grey-green leaflets bearing tendrils. Flowers 2-3cm in width, vivid purplish-pink, in racemes of 5-11

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 1–2 years
Max Spread: 0.5-1 metres
Max Height: 1.5-2.5 metres

Growing Conditions

Chalk Clay Loam Sand

Moisture: Moist but well–drained or Well–drained
pH: Acid or Alkaline or Neutral

Position

Full sun Partial shade

Aspect: South–facing or West–facing
Exposure: Exposed or Sheltered
Hardiness

Hardiness Ratings

All ratings refer to the UK growing conditions unless otherwise stated. Minimum temperature ranges (in degrees C) are shown in brackets

H1A: under glass all year (>15C)
H1B: can be grown outside in the summer (10 - 15)
H1C: can be grown outside in the summer (5 - 10)
H2: tolerant of low temperatures, but not surviving being frozen (1 to 5)
H3: hardy in coastal and relatively mild parts of the UK (-5 to 1)
H4: hardy through most of the UK (-10 to -5)
H5: hardy in most places throughout the UK even in severe winters (-15 to -10)
H6: hardy in all of UK and northern Europe (-20 to -15)
H7: hardy in the severest European continental climates (< -20): H7
Drought Resistance: Yes

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical 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: Correct
Plant Range: C&S Europe & N Africa

How to Grow

Cultivation

Can be grown as a climber or allowed to scramble over banks and slopes. It copes with sun or partial shade in fertile well-drained soil. See sweetpea cultivation for further information

Propagation

Propagate by seed

Suggested planting locations and garden types

City and courtyard gardens
Wildlife gardens
Coastal
Cottage and informal garden
Wall side borders
Banks and slopes
Climber and wall shrubs
Cut flowers

Pruning

Cut back to ground level in autumn

Pests

May be susceptible to aphids, slugs and snails

Diseases

May be susceptible to powdery mildews, Fusarium wilt and sweet pea viruses