Rhombophyllum rhomboideum

RHS Plant Profile
diamond-leaved rhombophyllum

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diamond-leaved rhombophyllum Dorling Kindersley 2003

Synonyms

Bergeranthus rhomboideus

Award of Garden Merit
Cactus Succulent Conservatory Greenhouse

A succulent perennial forming clumps, each stem with several pairs of fleshy, oblong, semi-cylindrical, grey-green leaves, with long-stalked, bright yellow, daisy-like flowers 3cm across in summer

Position

Full sun

Soil Types

Loam, Sand

Max Height

Up to 10 cm

Max Spread

0-0.1 metre

Size

Time to Maturity
2–5 years
Max Spread
0-0.1 metre
Max Height
Up to 10 cm

Growing Conditions

Loam Sand
Moisture
Well–drained
pH
Acid or Alkaline or Neutral

Position

Full sun
Aspect
South–facing or North–facing or West–facing or East–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
Aizoaceae
Native to GB/Ireland
No
Foliage
Evergreen
Habit
Clump forming
Genus
Rhombophyllum are perennial succulents with crowded, very fleshy leaves and daisy-like yellow flowers in summer
Name Status
Unresolved
Plant Range
S Africa (Cape)

How to Grow

Cultivation

Grow under glass in a standard cactus compost, in full light. Provide low humidity. Water freely when in growth and keep completely dry at other times. Apply a dilute low nitrogen fertilizer fortnightly during late spring and summer

Propagation

Propagate by seed or offsets

Suggested planting locations and garden types

  • Patio and container plants
  • Low Maintenance

Pruning

No pruning required

Pests

May be susceptible to aphids

Diseases

Generally disease-free