Lemna minuta Lesser duckweed Cardamine pratensis Lady’s smock Pond-edge plants(shallow water emergents) –short of these plants. Some exotic plants sold for garden ponds today Lemna minuscula Bad Plants Cuckoo flower Hippuris vulgaris Mare’s tail Good plants are now growing in the countryside and causing Ludwigia grandiflora Water primrose Carex pendula Pendulous sedge Hottonia palustris Water violet Lots of advice is available to help you create and problems for British wildlife. These plants are Ludwigia peploides The following are all plants that can Epilobium hirsutum Great willowherb Menyanthes trifoliate Bogbean The following are all good alternatives that Myriophyllum aquaticum Parrots feather cause problems in the countryside Eupatorium cannabinum Hemp agrimony Myosotis scorpioides Water forget-me-not will make your pond visually attractive and manage a pond, including: bad because: Myriophyllum brasiliense Brazilian watermilfoil and are best avoided for use in your Filipendula ulmaria Meadowsweet Persicaria amphibia Amphibious bistort a haven for wildlife. Those coloured in blue www.pondconservation.org.uk l They grow very fast Myriophyllum proserpinacoides pond. Geum rivale Water avens Polygonum amphibium are too large or vigorous for small ponds. www.wildlifetrusts.org l Tiny pieces will grow into large plants Pistia stratiotes Water lettuce Hypericum elodes Marsh St John’s wort Ranunculus flammula Lesser spearwort The rest are suitable for all ponds. l They quickly choke ponds and rivers Salvinia molesta Giant salvinia Allium paradoxum Few flowered leek Juncus effuses Soft rush Ranunculus lingua Greater spearwort Azolla caroliniana Water fern For more information on non-native invasive l They are very difficult to get rid of Tillaea helmsii Australian swamp Juncus inflexus Hard rush Sagittaria sagittifolia Arrowhead species visit: stonecrop Azolla filiculoides Water fern Lotus pedunculatus Greater birds foot trefoil Veronica beccabunga Brooklime Submerged plants Tillaea recurva Fairy fern Lychnis flos-cuculi Ragged robin Callitriche stagnalis Common water-starwort www.nonnativespecies.org If you buy these plants they could take over and Trapa natans Water chestnut Cabomba caroliniana Fanwort Lycopus europaeus Gipsywort Pond-edge plants (emergents) – tall Ceratophyllum demersum Rigid hornwort www.environment-agency.gov.uk choke your pond. They can spread into the Green Cabomba Lysimachia nummularia Creeping jenny Alisma plantago-acquatica Water plantain Eleocharis palustris Common spike-rush www.plantlife.org.uk countryside as seeds or tiny pieces carried by Carolina watershield Lysimachia vulgaris Yellow loosestrife Butomus umbellatus Flowering rush Hottonia palustris Water violet birds and other wildlife, or when you clean out Crassula helmsii Australian stonecrop Lythrum salicaria Purple loosestrife Carex riparia Greater pond sedge Myriophyllum spicatum Spiked water-milfoil New Zealand stonecrop Myriophyllum vertieillatum Whorled water-milfoil your pond and dump unwanted plants. It is very Mentha pulegium Pennyroyal Eleocharis acicularis Hair grass important not to allow material from garden Australian pigmyweed Osmunda regalis Royal fern Iris pseudacorus Yellow flag iris Potamogeton pectinatus Fennel pondweed New Zealand pigmyweed Parnassia palustris Grass-of-Parnassus Mentha aquatica Water mint ponds to reach the countryside either Eichhornia crassipes Water hyacinth Ranunculus acris Meadow buttercup Phragmites australis Common reed Floating-leaf plants accidentally or deliberately. Elodea Canadensis Canadian pondweed / Rorippa nasturtium-aquaticum Water cress Sparganium erectum Branched bur-reed Glyceria fluitans Floating sweet grass waterweed Stachys palustris Marsh woundwort Typha angustifolia Lesser bulrush Hydrocharis morsus-ranae Frogbit It is best to allow your pond to develop naturally Elodea crispa Curly water weed Sanguisorba minor Salad burnet Typha latifolia Lesser reedmace Lemna trisulca Ivy-leaved lily Elodea nuttallii Nuttall’s pondweed / Nymphaea alba White water lily and stock itself. Natural colonisation by plants, Succisa pratensis Devil’s bit scabious insects and amphibians often happens fast. If waterweed Veronica anagallis-aquatica Water speedwell Marginal and Bog Plants Nymphaea lutea Yellow water lily Fallopia japonica Japanese knotweed Achillea ptarmica Sneezewort Nymphoides peltata Fringed water lily you do want to buy some plants choose from Hydrocotyle ranunculoides Floating pennywort Acorus calamus Sweet flag Potamogeton crispus Curled pondweed the ‘Good Plants’ list and check that nothing else Impatiens glandulifera Indian / Himalayan Ajuga reptans Bugle Potamogeton natans Broad-leaved pondweed is growing in the pot or in the water. Never take balsam Althaea officinalis Marsh mallow Ranunculus aquatilis Water crowfoot plants from the wild. If you buy fish for your Jussiaea grandiflora Water primrose Caltha palustris Marsh marigold pond, their water could also contain fragments Menyanthes trifoliata - Bogbean Azolla - Water/Fairy fern Lagarosiphon major Curly water weed Iris pseudacorus - Yellow flag iris