Pisum sativum 'Oregon Giant'

RHS Plant Profile

pea (mangetout) 'Oregon Giant'

Annual Biennial

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A medium-height pea to 120cm. It has green leaves and climbs using tendrils. The flowers are white and develop into large, fleshy mange-tout peas. It is an annual which lives for one summer.

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1-1.5 metres

Max Spread

0.5-1 metres

Size

Time to Maturity: 1 year
Max Spread: 0.5-1 metres
Max Height: 1-1.5 metres

Growing Conditions

Chalk Clay Loam Sand

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

Position

Full sun

Aspect: East–facing or South–facing or West–facing
Exposure: 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): H2

Colour & Scent

Season	Stem	Flower	Foliage	Fruit
Spring
Summer
Autumn
Winter

Botanical Details

Family: Fabaceae
Native to GB/Ireland: No
Foliage: Deciduous
Habit: Climbing
Genus: A very small genus of annual, flowering plants from legume family. Native to SW Asia and NE Africa, species P. sativum is widely cultivated for food. Hollow. Climbing or trailing stems bear compound leaves and tendrils. Flowers are butterfly-shaped, 1-3 per stalk. The fruit is a pod
Name Status: Accepted

How to Grow

Cultivation

Sow seed quite densely, in full sun in well-drained but moisture-retentive soil. Provide support such as twiggy hazel sticks or netting, them to climb up. Pick pods regularly to ensure a continuous crop. For more advice, see pea cultivation.

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types

Cottage and informal garden
Edible fruit

Pruning

No pruning required

Pests

May be susceptible to pea moth, aphids, pea and bean weevil, pea thrips, pigeons, slugs and snails. Mice may eat newly-sown seeds

Diseases

May be susceptible to Powdery mildews, downy mildews, foot and root rot, Fusarium wilt, grey moulds, pea leaf and pod spot, and virus diseases