Lathyrus vernus 'Gracilis'

RHS Plant Profile
spring pea 'Gracilis'

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spring pea 'Gracilis' RHS
Herbaceous Perennial
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A compact, mound-shaped plant to 30cm tall and wide with pinnate leaves divided into almost linear , grass-like leaflets. Deep pinkish-mauve, pea-like flowers are borne in spring on short stems

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

0.1-0.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity
2–5 years
Max Spread
0.1-0.5 metres
Max Height
0.1-0.5 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 or East–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)
H5

Colour & Scent

Season Stem Flower Foliage Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family
Fabaceae
Native to GB/Ireland
No
Foliage
Deciduous
Habit
Clump forming
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
Unresolved

How to Grow

Cultivation

Best grown in fertile, humus-rich, well-drained soil in full sun or partial shade. See sweetpea cultivation for further information.

Propagation

Propagate by division in early spring

Suggested planting locations and garden types

  • Cottage and informal garden
  • Gravel garden
  • Rock garden
  • Flower borders and beds
  • Underplanting of roses and shrubs

Pruning

Deadhead regularly then cut stems down to the ground in autumn

Pests

May be susceptible to aphids, slugs and snails

Diseases

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