• 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

Athyrium filix-femina 'Vernoniae'

lady fern 'Vernoniae'

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
lady fern 'Vernoniae'

© RHS

  • Other common names lady fern 'Vernoniae'

  • Synonyms Athyrium filix-femina Vernoniae Group

  • Family Woodsiaceae

  • Genus Athyrium are deciduous ferns with erect or creeping rhizomes bearing usually pinnate to tripinnate fronds, often of thin texture, and they are especially shade-tolerant

  • Details 'Vernoniae' is a tufted fern forming a rosette of arching, narrowly ovate fronds with crispy, strongly-toothed, triangular or fan-shaped segments giving a lacy appearance

Characteristics

  • Foliage Deciduous

  • 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)

    H6

Colour

Sunlight

  • Full Shade

  • Partial Shade

  • Aspect North-facing or East-facing

  • Exposure Sheltered

Soil

  • Loam

    Loam

  • Sand

    Sand

  • Clay

    Clay

  • MoistureMoist but well-drained

  • SoilLoam, Sand, Clay

  • pHAcid, Neutral

Size

  • Ultimate height 0.1-0.5 metres

  • Ultimate spread 0.1-0.5 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Easy to grow in fertile, moist neutral to acid soil, enriched with leaf mould or garden compost in a sheltered shady site

Propagation Propagate by sowing spores (one of the few lady fern cultivars to largely come true from spores) in mid to late summer or by division in spring

Suggested planting locations and garden types Flower borders and beds City & Courtyard Gardens Cottage & Informal Garden Rock Garden

How to care

Pruning Dead or damaged fronds may be removed as necessary

Pests Generally pest free outdoors

Diseases Generally disease free outdoors

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