• 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
Back to search results

Zanthoxylum clava-herculis

Hercules' club

Last-listed in the RHS Plant Finder in 2016

  • Other common names Hercules' club

    prickly yellow-wood
    sea ash
    southern prickly ash
    toothache tree
    West Indian yellow-wood

    see more
  • Family Rutaceae

  • Name Status RHS Accepted name

  • Plant range SE N America

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.