• 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

Aeonium undulatum

saucer plant

saucer plant

© RHS 2003

  • Other common names saucer plant

  • Synonyms Aeonium pseudotabuliforme hort.
    Aeonium youngianum

  • Family Crassulaceae

  • Genus Aeonium are evergreen succulents often of shrubby habit, with fleshy leaves in terminal rosettes on the shoots, and racemes or panicles of small, star-shaped flowers with numerous narrow petals

  • Details A. undulatum is a succulent, evergreen subshrub to 25cm in height, with terminal rosettes of fleshy, tongue-shaped, glossy leaves to 15cm in length, tinged with red. Flowers small, yellow, in large conical panicles

  • Plant range Gran Canaria

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)

    H1C

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or East-facing

  • Exposure Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Sand

  • MoistureWell-drained

  • SoilLoam, Sand

  • pHNeutral, Alkaline, Acid

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 10-20 years

How to grow

Cultivation Grow under glass in a standard cactus compost, in full light. When in growth water freely and feed every two or three weeks with a low nitrogen liquid feed. Keep almost dry in the winter

Propagation Propagate by seed sown at 19-24ºC in spring or by cuttings of rosettes kept at 18ºC and barely moist until rooted

Suggested planting locations and garden types Mediterranean Climate Plants Patio & Container Plants

How to care

Pruning No pruning required

Pests May be attacked by aphids and mealybugs

Diseases Generally disease free

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