• 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

Cymbopogon citratus

lemon grass

lemon grass


  • Other common names lemon grass


    see more
  • Synonyms Andropogon citratus

  • Family Poaceae

  • Genus Cymbopogon are sturdy, aromatic, tufted, evergreen, perennial grasses with linear to lance-shaped, mid- to bluish-green leaves and many-branched flower sprays. They contain essential oils that have medicinal, culinary and cosmetic uses

  • Details C. citratus is a densely-tufted, clump-forming, evergreen grass with hollow, cane-like stems and erect to arching, narrow, strongly lemon-scented, pale blue-green leaves up to 90cm long. Flowers are green and pinkish brown, in loose, branched sprays in late summer and autumn, but rarely appear under glass

  • Plant range S India Sri-Lanka


  • Foliage Evergreen

  • Habit Bushy

  • Fragrance Leaf

  • 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)




  • Full Sun

  • Aspect South-facing or West-facing

  • Exposure Sheltered


  • Loam


  • MoistureMoist but well-drained

  • SoilLoam

  • pHAcid, Alkaline, Neutral


  • Ultimate height 1-1.5 metres

  • Ultimate spread 0.5-1 metres

  • Time to ultimate height 2-5 years

How to grow

Cultivation Grow under glass in loam-based compost in full light with moderate humidity

Propagation Propagate by seed sown at 13-18°C in early spring, or by division in late spring. Fresh shoots sold for cooking will often root successfully

Suggested planting locations and garden types Patio & Container Plants Sub-tropical

How to care

Pruning No pruning needed

Pests Generally trouble free

Diseases Generally trouble free

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

Get involved

We're a UK charity established to share the best in gardening. We want to enrich everyone's life through plants, and make the UK a greener and more beautiful place.