• AGM plants

    AGM plants have been through a rigorous trial and assessment programme. They are:

    • Excellent for ordinary use in appropriate conditions
    • Available to buy
    • Of good constitution
    • Essentially stable in form & colour
    • Reasonably resistant to pests & diseases

Rebutia fiebrigii 'Muscula'

little mouse crown cactus

AGM plants

AGM plants have been through a rigorous trial and assessment programme. They are:

  • Excellent for ordinary use in appropriate conditions
  • Available to buy
  • Of good constitution
  • Essentially stable in form & colour
  • Reasonably resistant to pests & diseases
little mouse crown cactus

© RHS

  • Other common names little mouse crown cactus

  • Synonyms Rebutia muscula

  • Family Cactaceae

  • Genus Rebutia can be solitary or clustering cacti, with globose or shortly cylindrical, ribbed or tuberculate stems, and showy funnel-shaped flowers

  • Details 'Muscula' is a clustering cactus with spherical stems to 10cm, bearing bristly spines and bright reddish-orange flowers to 3.5cm across in early and mid summer

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • 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

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Sand

    Sand

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Loam

  • pHNeutral, Acid

Size

  • Ultimate height Up to 10 cm

  • Ultimate spread 0-0.1 metre

  • Time to ultimate height 5-10 years

How to grow

Cultivation Under glass, grow in standard cactus compost in full light with low humidity. From spring to summer, water moderately and apply a balanced liquid fertiliser 3 or 4 times; keep completely dry at other times

Propagation Propagate by seed at 21°C (70°F) in early spring, or remove offsets in spring or summer

Suggested planting locations and garden types Patio & Container Plants

How to care

Pruning No pruning necessary

Pests Prone to mealybugs early in the season

Diseases Relatively disease resistant

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