WACA 1981 Schedule 9 Plant List Update

The two terrestrial plants that have been on Part II of Schedule 9 of the Wildlife & Countryside Act since it’s introduction in 1981 – Japanese Knotweed and Giant Hogweed – are now quite well known, recognized and properly controlled on construction sites. However, on 6th April 2010, a major update of Schedule 9 came into effect, adding a great many new plants to Schedule 9, many of which are relatively well known as common garden or ornamental pond plants.

My consolidated list of Schedule 9 plants (England &  Wales) with the four original (1981) plants highlighted in bold now looks like:

Terrestrial Plants:

  • Allium paradoxum (Few-flowered Leek), A. triquetrum (Three-cornered Garlic)
  • Carpobrotus edulis (Hottentot Fig)
  • Cotoneaster bullatus (Hollyberry Cotoneaster), C. horizontalis (Cotoneaster), C. integrifolius (Entire-leaved Cotoneaster), C. microphyllus (Small-leaved Cotoneaster), C. simonsii (Himalayan Cotoneaster)
  • Crocosmia x crocosmiiflora (Montbretia)
  • Disphyma crassifolium (Purple Dewplant)
  • Fallopia japonica (Japanese Knotweed), F. japonica x F. sachalinensis (Hybrid Knotweed), F. sachalinensis (Giant Knotweed)
  • Gunnera tinctoria (Giant Rhubarb)
  • Heracleum mantegazzianum (Giant Hogweed)
  • Impatiens glandulifolius (Himalayan Balsam)
  • Lamiastrum galeobdolon subs argentatum (Variagated Yellow Archangel)
  • Parthenocissus inserta (False Virginia Creeper), P. quinquefolia (Virginia  Creeper)
  • Rhododendron luteum (Yellow Azalea), R. ponticum (Rhododendron), R. ponticum x R. maximum (Rhododendron)
  • Rosa rugosa (Japanese Rose)

Aquatic Plants

  • Azolla filiculooides (Water Fern)
  • Cabomba caroliniana (Fanwort, aka Carolina Water-Shield)
  • Crassula helmsii (Australian Swamp Stonecrop, aka New Zealand Pygmyweed)
  • Eichhornia crassipes (Water Hyacinth)
  • Elodea spp (All Waterweeds)
  • Grateloupia luxurians (Red Algae)
  • Hydrocotyle ranunculoides (Floating Pennywort)
  • Lagarosiphon major (Curly Waterweed)
  • Ludwigia grandiflora (Water Primrose), L. peploides (Floating Water Primrose), L. uruguayensis (Water Primrose)
  • Myriophyllum aquaticum (Parrot’s Feather)
  • Pistia stratoites (Water Lettuce)
  • Sagittaria latifolia (Duck Potato)
  • Salvinia molesta (Giant Salvinia)

Marine Plants

  • Codium fragile (Green Seafingers)
  • Macrocystis pyrifera (Giant Kelp)
  • Sargassum muticum (Japanese Seaweed)

As has been the case with Japanese Knotweed and Giant Hogweed for the past 30 years, it is now a Section 14 offence to cause any of these plants to grow in the wild, and this includes inadvertently spreading plant material during construction operations. Any soil or plant waste containing viable growing material from any of the above plants is classed as “controlled waste” under the Waste Duty of Care, and must be dealt with as such.

I now cover invasive plants as part of my Wildlife & Biodiversity Masterclass. Please contact me if you would like more details of this course.


2 Responses to WACA 1981 Schedule 9 Plant List Update

  1. Pingback: Japanese Knotweed ID – Autumn | bps eco ltd

  2. Pingback: Invasive Rhododendron – what’s in a name? | bps eco ltd

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