• AGM plants

    AGM plants have been through a rigourous 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

Agave victoriae-reginae

Queen Victoria century plant

AGM plants

AGM plants have been through a rigourous 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
Queen Victoria century plant

© � RHS 2002

  • Other common names Queen Victoria century plant
    Royal agave

  • Synonyms Agave ferdinandi-regis
    Agave scabravictoriae-reginae

    Agave victoriae-reginae f. longifolia
    Agave victoriae-reginae f. longispina
    Agave victoriae-reginae var. nickelsiae

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  • Genus Agave can be perennial or monocarpic succulents, forming rosettes of usually rigid, fleshy, spiny-edged leaves, with funnel-shaped flowers in racemes or panicles often much taller than the rosettes

  • Family Asparagaceae / Asparagaceae

  • Species A. victoriae-reginae is an evergreen perennial forming a rosette of thick, straight, mid-green, spine-tipped leaves to 30cm in length, with creamy-white flowers borne in narrow, erect or arching racemes to 4m in length

  • Plant range Mexico

Characteristics

  • Foliage Evergreen

  • Habit Tufted

  • 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)
    Old hardiness ratings

    While we update our systems with the new hardiness ratings you may still see old hardiness ratings in your search results. These are denoted as 'Old'.

    • H1 - Requires heated glass
    • H2 - Requires unheated glass
    • H3 - Hardy outside in some regions of the UK
    • H4 - Hardy throughout the UK
    • H1 + H3 - Requires heated glass but may be grown outside in summer

    For full details of the hardiness ratings see

    see more

    H2

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered

Soil

  • Chalk

    Sand

  • Chalk

    Loam

  • MoistureWell-drained

  • SoilSand, Loam

  • pHAcid, Neutral

Size

  • Ultimate height

    0.1-0.5 metres

  • Ultimate spread

    0.1-0.5 metres

  • Time to ultimate height

    5-10 years

How to grow

Cultivation Grow under glass in a standard cactus compost, water freely in summer and apply a balanced liquid fertiliser 3-4 times during the growing season. May be bedded or stood out in borders or patios in summer. Allow to dry out in winter

Propagation Propagate by offsets taken in spring or autumn

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

How to care

Pruning No pruning required

Pests Can get scale insects

Diseases Generally disease free

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