• 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

Stipa tenuissima

Mexican feather grass

  • Other common names Mexican feather grass
    Texas needle grass

  • Synonyms Nassella tenuissima
    Nassella tenuissima 'Pony Tails'

    Stipa tenuifolia misapplied
    Stipa tenuissima 'Pony Tails'

    see more
  • Genus Stipa can be evergreen or deciduous, mostly perennial grasses with arching, folded or rolled, linear leaves and narrow panicles of often long-awned spikelets in summer and autumn

  • Family Poaceae / Poaceae

  • Details S. tenuissima is a deciduous grass to 60cm, forming a compact upright tuft of thread-like leaves, with narrow, arching, feathery flowering panicles in summer

  • Plant range USA to S America

Characteristics

  • Foliage Deciduous

  • Habit Tufted

Colour

Sunlight

  • Full Sun

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

  • Exposure Exposed or Sheltered

Soil

  • Chalk

    Loam

  • Chalk

    Chalk

  • Chalk

    Sand

  • Chalk

    Clay

  • MoistureWell-drained, Moist but well-drained

  • SoilLoam, Chalk, Sand, Clay

  • pHAcid, Alkaline, Neutral

Size

  • Ultimate height

    0.5-1 metres

  • Ultimate spread

    0.1-0.5 metres

  • Time to ultimate height

    2-5 years

How to grow

Cultivation Grow in medium to light, moderately fertile soil in full sun

Propagation Propagate by seed sown in pots in a cold frame in spring or by division in spring

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

How to care

Pruning Leaves can be cut back when they die off in late autumn

Pests Generally pest free

Diseases Generally disease free

Advertise here

Did you find the information you were looking for?

RHS members can get exclusive individual advice from the RHS Gardening Advice team.

Join the RHS now