Not advisable to :

Order

Schedule 9 Schedule s s

Notes

weed

potentially too invasive too potentially value low/no Noxious Order Wildlife Pirri-pirri Burr (Acaena 'Blue Haze') 1 1

Pirri-pirri Burr (Acaena microphylla) 1 1

Pirri-pirri-bur (Acaena novae-zelandiae) 1 1

Cappadocian Maple (Acer cappadocicum) 1

Japanese Maple (Acer palmatum ) 1

Chocolate Vine (Akebia quinata) 1 1

Few-flowered Leek (Allium paradoxum) 1 1

Three-cornered Garlic (Allium triquetrum) 1

Grey Alder (Alnus incana) 1

Dwarf Serviceberry (Amelanchier spicata) 1

Cape Pondweed (Aponogeton distachyos) 1 1

Giant Reed (Arundo donax) 1 1 1

Spotted-laurel (Aucuba japonica) 1 cited as having wildlife value by BTO but only for structure. 'Rozannie' may be OK

Wild-oat (Avena fatua) 1 1

Common Oat (Avena sativa) 1 1 1

Water Fern (Azolla caroliniana) 1 1

Water Fern (Azolla filiculoides) 1 1 1

Butterfly-bush (Buddleja davidii and davidii cultivars) 1 In areas with semi-natural scree

Carolina Water-shield (Cabomba caroliniana) 1 1 1 aka Fanwort

Hottentot Fig (Carpobrotus edulis) 1 1 Attractive to pollinators

Spotted Knapweed (Centaurea biebersteinii) 1

Knapweed (Centaurea jacea) 1 Genetic drift - hybridises with nigra

Bitter Bush (Chromolaena odorata) 1 1

Creeping Thistle (Cirsium arvense) 1 High wildlife value

Spear Thistle (Cirsium vulgare) 1 high wildlife value

Dogwood (Cornus stolonifera) except in variety 1 1 esp in damp habitats. aka sericea. wildlife value

Hollyberry (Cotoneaster bullatus) 1 1 high wildlife value

High wildlife value. One of the busiest - Wall Cotoneaster (Cotoneaster horizontalis) 1 1 NIEA recommended, RHS perfect for pollinators, but spreads aggresively by seed Small-leaved Cotoneaster (Cotoneaster integrifolius) 1 1 Has wildlife value. Aka S thymifolius, Probably sold as C. microphyllus

Simon's Cotoneaster (Cotoneaster simonsii) 1 1 Has wildlife value

New Zealand Pygmyweed (Crassula helmsii) 1 1 1

Montbretia (Crocosmia x crosmiflora unless in variety) 1 1

Except native Juniper. May still be useful for acoustic/visual screening. Cypresses (Cupressaceae) all and cultivars 1 Recommended by BTO Purple Dewplant (Disphyma crassifolium) 1 1

Water Hyacinth (Echornia crassipes) 1 1

Giant Elodea (Egeria densa) 1 1 1

Water Hyacinth (Eichhornia crassipes) 1 1

Russian Olive (Elaeagnus angustifolia) 1 1 but RHS PfP listed

Oleaster (Elaeagnus pungens (or E. x ebbingei) 1 but RHS PfP listed

Autumn Olive (Elaeagnus umbellata) 1 1

Pond Weed (Elodea species) 1 1 1

Spindle Tree (Euonymus fortunei) 1

Variegated Euonymus (Euonymus 'Green 'n' anything') 1

Japanese Spindle (Euonymus japonicus) 1 Recommended by BTO

Leafy Spurge (Euphorbia esula) 1 1

Black-bindweed (Fallopia convolvulus) 1 1

Japanese Knotweed (Fallopia japonica) 1 1 1 1 Good nectar source Hybrid knotweed (Fallopia japonica x sachalinensis) 1 1 aka F x bohemica

Giant Knotweed (Fallopia sachalinensis) 1 1 1

Forsythia (Forsythia x intermedia) 1

Fuchsia (Fuchsia magellanica) 1 wildlife value, but likely to spread unacceptably unless managed. RHS PfP listed

Crane's-bill (Geranium procurrens) 1 wildlife value, but likely to spread unacceptably

Reed Sweet-grass (Glyceria maxima) 1 1

New Zealand Broadleaf (Griselinia littoralis) 1

Brazilian Giant-rhubarb (Gunnera manicata) 1 1

Giant Rhubarb (Gunnera tinctoria) 1 1 1

Jerusalem Artichoke (Helianthus tuberosus) 1 High wildlife value, but allelopathic as well as invasive

Giant Hogweed (Heracleum mantegazzianum) 1 1 1

Sea-buckthorn (Hippophae rhamnoides) 1 1 native in parts of England. Often recommended for wildlife. Recommended by BTO

Spanish Bluebell (Hyacinthoides hispanica) 1 1 gene flow - very considerably less frequent than the hybrid

Hybrid Bluebell (Hyacinthoides x massartiana) 1 Gene transfer

Floating Pennywort (Hydrocotyle ranunculoides) 1 1 1

Himalayan Balsam (Impatiens glandulifera) 1 1 wildlife value

Water Spinach (Ipomoea aquatica) 1 1

Broad-leaved Rush (Juncus planifolius) 1 1

Water Primrose (Jussiaea grandiflora) 1

Curly Waterweed (Lagarosiphon major) 1 1 1

Hare's Tail (Lagurus ovatus) 1 1

Variegated Yellow Archangel (Lamiastrum galeobdolon 1 montanum/argentatum) Least Duckweed (Lemna minuta) 1 1

Summer Snowflake (Leucojum aestivum) 1 1

Himalayan (Leycesteria formosa) 1 high wildlife value. Recommended by Natural England

Chilean Iris (Libertia formosa) ? 1

Evergreen Honeysuckle (Lonicera henryi) or variety 1

Japanese Honeysuckle (Lonicera japonica) ? 1

Wilson's Honeysuckle (Lonicera nitida) 1

Sometimes credited with wildlife value, but poor-flowering/fruiting in N I try Box-leaved Honeysuckle (Lonicera pileata) 1 Sarcococca in shade instead Water Primrose (Ludwigia peploides = grandiflora) 1 1 1

Water Primrose (Ludwigia uruguayensis) 1 1 1

American Skunk-cabbage (Lysichiton americanus) 1

Monkey (Mimulus cupreus) 1 1

Monkeyflower (Mimulus guttatus) 1 1

Monkeyflower (Mimulus guttatus x luteus = M. x robertsii) 1 1

Parrots Feather (Myriophyllum aquaticum) 1 1 1

Brazilian Milfoil (Myriophyllum proserpinacoides) 1 1

Chilean Needle Grass (Nassella neesiana) 1 1

Fringed Water-lilly (Nuphar pumilla) 1 1

Fringed Water-lily (Nymphoides peltata) 1 1 1

False Virginia Creeper (Parthenocissus inserta) 1 1

Red Bistort (Persicaria amplexicaulis) except in variety 1 except in variety

Himalayan Knotweed (Persicaria wallichii) 1 1 aka Polygonum wallichii. Good nectar source

Winter Heliotrope (Petasites fragrans) 1

Water Lettuce (Pistia Stratiotes) 1 1 1

Kohuhu (Pittosporum tenuifolium) 1

Victorian Box (Pittosporum undulatum) 1 1

Mile-a-Minute Vine (Polygonum perfoliatum) 1 1 1

Cherry Laurel (Prunus laurocerasus) wild type 1 1

Zabelliana and Otto Luyken are used extensively - they at least flower 2 x in the ? Cherry Laurel (Prunus laurocerasus cultivars) ? ? season. Gajo to 1m profusely Leaves and pits poisonous Cherry Laurel (Prunus laurocerasus wild genotype) 1 ? very shy flowerer in shade

Black Cherry (Prunus serotina) 1

Climber Vine (Pueraria montana) 1 1

Wild Radish (Raphanus raphanistrum) 1

Azaleas/Rhododendrons (Rhododendron cultivars), 1 1

Yellow Azalea (Rhododendron luteum) 1 1

Rhododendron (Rhododendron ponticum) 1 1

Rhododendron (Rhododendron ponticum x Rhododendron 1 1 maximum) not recommended close to semi-natural wetlands or in areas of frequent semi- Black Currant (Ribes nigrum) 1 natural wetlands False-acacia (Robinia pseudoacacia) 1 RHS recommeded nectar plant

Japanese Rose (Rosa rugosa) 1 wildlife value - RHS recommeded nectar plant

Golden Evergreen Rasberry (Rubus ellipticus)

Salmonberry (Rubus spectabilis) 1 1 has wildlife value

Curled Dock (Rumex crispus) 1

Broad-leaved Dock (Rumex obtusifolius) 1

Duck Potato (Sagittaria latifolia) 1 1

Giant Water Fern (Salvinia molesta) 1 1 1

Chinese Tallow (Sapium sebiferum) 1 1

Broad-leaved Bamboo (Sasa palmata) 1 1

Marsh Ragwort (Senecio aquaticus) 1 high wildlife value

Common Ragwort (Senecio jacobaea) 1 high wildlife value

Perfoliate Alexanders (Smyrnium perfoliatum) 1

Tropical Soda Apple (Solanum viarum) 1 1

Gray Goldenrod (Solidago nemoralis) 1

Common Cord-grass (Spartina anglica) 1 1

Water-soldier (Stratiotes aloides) 1

Snowberry (Symphoricarpos albus) 1 Wildlife value - RHS PfP listed

Creeping Comfrey (Symphytum grandiflorum) 1

Fringe Cups (Tellima grandiflora) 1

Water chestnut (Trapa natans) 1 1

Japanese Kelp (Undaria pinnatidifa) 1 Seaweed

Greater Periwinkle (Vinca major) 1 wildlife value

Lesser Periwinkle (Vinca minor) 1 wildlife value - recommended by EANI. Less invasive than V. Major

Death Camas (Zigadenus spp.) 1 pollen and nectar are poisonous to insects - is poisonous to humans/livestock

Dwarf Eel Grass (Zostera japonica) 1 1