Robinia pseudoacacia 'Frisia'

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false acacia 'Frisia'

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false acacia 'Frisia' RHS
false acacia 'Frisia' RHS
false acacia 'Frisia' RHS 2002
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A bushy, upright, medium-sized deciduous tree with bright greenish-yellow, pinnate leaves, which become more vivid in summer and turn orange-yellow in autumn. Seldom flowers freely

Position

Full sun

Soil Types

Chalk, Clay, Loam, Sand

Max Height

Higher than 12 metres

Max Spread

4-8 metres

Size

Time to Maturity
20–50 years
Max Spread
4-8 metres
Max Height
Higher than 12 metres

Growing Conditions

Chalk Clay Loam Sand
Moisture
Moist but well–drained or Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
West–facing or East–facing or South–facing or North–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)
H6
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
Bushy
Potentially harmful
Harmful if eatenskin irritant. Wear gloves and other protective equipment when handling Pets: Harmful if eatenskin irritant - for further information and contact numbers regarding pets, see the HTA guide to potentially harmful plants
Genus
Robinia are vigorous suckering trees and shrubs, sometimes thorny, with pinnate leaves and racemes of pea-type flowers in early summer, sometimes followed by seed pods
Name Status
Accepted

How to Grow

Cultivation

Grow in any soil in good light. Remove any suckers that grow, which may have long thorns. For more advice see tree cultivation. Has the potential to become a nuisance if not managed well

Propagation

Propagate by seed sown in a cold frame in autumn

Suggested planting locations and garden types

  • Wildlife gardens
  • Architectural
  • Low Maintenance

Pruning

Pruning group 1 or Pruning group 7; pruning should be done in late summer or early autumn to prevent bleeding; sucker removal if necessary, in autumn

Pests

Generally pest-free

Diseases

May be susceptible to honey fungus