• 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

Selaginella kraussiana

Kraus's clubmoss

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
Kraus's clubmoss

© � RHS 1999

  • Other common names Kraus's clubmoss
    Mat spike moss

    Spreading clubmoss
    Trailing spike moss

    see more
  • Genus Selaginella are evergreen rhizomatous perennials which may be small and tufted or tall and scrambling, the slender stems covered with small scale-like leaves; spores develop in short terminal spikes

  • Family Selaginellaceae / Selaginellaceae

  • Species S. kraussiana is a vigorous mat-forming perennial with rooting stems to 5cm tall, bearing small, scale-like leaves giving a fern-like appearance

  • Plant range Temp S Africa

Characteristics

  • Foliage Evergreen

  • Habit Mat forming

  • 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

  • Partial Shade

  • Full Shade

  • Aspect North-facing or West-facing or East-facing

  • Exposure Sheltered

Soil

  • Chalk

    Loam

  • MoistureMoist but well-drained

  • SoilLoam

  • pHAcid, Neutral

Size

  • Ultimate height

    Up to 10 cm

  • Ultimate spread

    1-1.5 metres

  • Time to ultimate height

    1-2 years

How to grow

Cultivation In frost prone areas grow under glass in a mixture of two parts loam (JI No2) and one part leafmould, in bright but filtered light. Requires a minimum temperature of 5-7C in the winter months

Propagation Sow spores at 21C (70F) as soon as they are ripe. Divide the rhizomes of rooted stems in the spring

Suggested planting locations and garden types Patio & Container Plants

How to care

Pruning Pruning is not generally necessary

Pests Generally trouble free

Diseases Generally trouble free

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