Not advisable to plant: Order Schedule 9 Schedule 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 cultivars) 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 (Cotoneaster bullatus) 1 1 high wildlife value High wildlife value. One of the busiest shrubs - 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 species 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 Honeysuckle (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 Flower (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 flowers 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 - plants is poisonous to humans/livestock Dwarf Eel Grass (Zostera japonica) 1 1 .