Phaseolus coccineus 'Streamline'

RHS Plant Profile

bean (runner) 'Streamline'

Climber Wall Shrub Fruit Edible

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A traditional runner bean that can reach a height of around 180cm with green foliage. Scarlet flowers are followed by long, smooth green pods, providing a reliably heavy crop in summer. Sow between April and June for cropping between July and September

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

1.5-2.5 metres

Max Spread

0.1-0.5 metres

Size

Time to Maturity: 1 year
Max Spread: 0.1-0.5 metres
Max Height: 1.5-2.5 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 North–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: Phaseolus are annual or perennial legumes, usually climbing or trailing in form, and with trifoliate leaves. Grown as crop plants for their edible seeds, including runner, French and lima beans, as well as for animal feed, green manures and as ornamentals
Name Status: Accepted

How to Grow

Cultivation

Grow up support in any moisture retentive soil in full sun. For more information see runner-bean cultivation

Propagation

Propagate by seed. See sowing vegetable seeds

Suggested planting locations and garden types

Cottage and informal garden

Pruning

Pinch out tips of the plants when they reach the top of their support

Pests

May be susceptible to slugs and snails, and to blackfly (black aphid)

Diseases

May be susceptible to runner and french bean rust