• 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

Yucca whipplei

Our Lord's candle

  • Other common names Our Lord's candle
    Spanish bayonet

    Chaparral yucca

    see more
  • Synonyms Hesperoyucca whipplei
    Yucca peninsularis

  • Family Asparagaceae

  • Genus Yucca can be evergreen perennials, shrubs or trees, with dense or loose rosettes of stiff, sword-shaped leaves and tall panicles of bell-shaped flowers

  • Details Y. whipplei produces a dense, dome-shaped rosette of narrow, spine-tipped, grey-blue, evergreen leaves, to about 1m. Mature plants produce massive flower spikes, potentially to 5m though usually less in gardens. These comprise a stout stem with masses of scented, hanging, bell-shaped, ivory flowers in late summer. Flowers and stem may be flushed with reddish-purple

  • Plant range California to Mexico

Characteristics

  • Foliage Evergreen

  • Habit Bushy

  • Fragrance Flower

  • 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)

    H4

Colour

Sunlight

  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered or Exposed

Soil

  • Sand

    Sand

  • Chalk

    Chalk

  • Loam

    Loam

  • MoistureWell-drained

  • SoilSand, Chalk, Loam

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height 0.5-1 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 5-10 years

How to grow

Cultivation Grow outdoors in any well-drained soil in full sun. The rosette dies after flowering, and should be carefully cut away, but is usually replaced by one or more offsets

Propagation Propagate by seed or remove rooted suckers

Suggested planting locations and garden types Flower borders and beds Architectural City & Courtyard Gardens Coastal Cottage & Informal Garden Mediterranean Climate Plants

How to care

Pruning No pruning required

Pests May be attacked by aphids on flower spikes

Diseases May be subject to a leaf spot

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