Pyracantha rogersiana 'Molten Lava'

RHS Plant Profile
Asian firethorn 'Molten Lava'

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Shrubs

An upright to spreading, evergreen shrub to 2.4-4m (8-13ft) high and wide, with dark green leaves, spiny branches and dense clusters of small white flowers in late spring on the previous year's growth. These are followed by a profusion of bright orange-yellow in autumn

Position

Full sun, Partial shade

Soil Types

Chalk, Clay, Loam, Sand

Max Height

2.5-4 metres

Max Spread

2.5-4 metres

Size

Time to Maturity
5–10 years
Max Spread
2.5-4 metres
Max Height
2.5-4 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
Rosaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Bushy
Potentially harmful
Fruit are ornamental - not to be eaten. Wear gloves and other protective equipment when handling. Pets: Fruit are ornamental - not to be eaten - see the HTA guide to potentially harmful plants for further information and useful contact numbers
Genus
Pyracantha are evergreen shrubs or small trees, with spiny branches bearing simple leaves and corymbs of small white flowers followed by showy red, orange or yellow berries
Name Status
Unresolved

How to Grow

Cultivation

Suitable for growing in any moderately fertile garden soil, in sun or partial shade, including very dry, free-draining soils, and heavy clays, as long as they are not prone to waterlogging. See pyracantha cultivation

Propagation

Propagate by semi-ripe or hardwood cuttings, or by seed sown in spring, after three months of cold stratification, bearing in mind that cultivars won't usually come true from seed and seed raised plants can be of variable quality.

Suggested planting locations and garden types

  • Cottage and informal garden
  • City and courtyard gardens
  • Wildlife gardens
  • Flower borders and beds
  • Climber and wall shrubs
  • Hedging and screens

Pruning

Flowers are produced mainly on stems produced the previous year, so pruning should aim to retain as much two year old growth as possible. Prune out unwanted growth and on mature shrubs, twenty percent of older wood, after flowering has finished each year.

Pests

May be susceptible to aphids, woolly aphid, caterpillars, brown scale and leaf-mining moths

Diseases

May be susceptible to pyracantha scab, honey fungus and fireblight