The following should be used for deeper water :­

                    Stratiotes aloides                          

                    Villarsia nymphaeoides

                    Hottonia palustris                          

                    Ranunculus aquatilis

                    Pontederia cordata                        

                    Sagittaria sagittifolia

Chief among aquatics are the several forms of the hardy Nymphaeas, suitable for water of varying depths. 

Plants for Bog and Water Margins

In tubs:­

                    Nymphaea pygmaea                       

                    Aponogeton distachyon

                    N.helvola                                    

                    Butomus palustris                                     

In small bog pools:­

                    Orontium aquaticum                       

                    Calla palustris

In the wettest bog margins:­

                    Ficaria grandiflora                           

                    Myositis palustris

                    Drosera rotundifolia                       

                    Onoclea sensibilis        

                    Asplenium                      

                    Parnassia palustris                          

                    Nephrodium thelipteris

                    Pinguicula grandiflora                      

                    Osmunda                               

                    Primula sikkimensis                         

                    Struthiopteris germanica

                    Caltha palustries

For the drier parts of the bog garden the following would be suitable :­

                    Primula rosea                                

                    P.farinosa 

                    Erica tetralix                                 

                    E.hybrida

                    P.involucrata                                

                    Saxifraga peltata

                    P.capitata                                   

                    S.granulata

                    Habenaria fimbriata.                   

                    Orchis foliosa

                    Sarracenia purpurea                       

                    O.latifolia

                    Dentaria digitata                           

                    Dielytra spectabilis

                    Mimulus luteus                               

                    Gentiana asclepiadea

                    Hellonias bullata                           

                    G.bavarica

                    Narthecium ossifragum

In well-shaded positions:­

                    Cypripedium spectabile                     

                    Epigaea repens

                    Trillium grandiflorum                          

                    Sanguinaria canadensis

Plants of larger habit, useful for bolder groups :­

                    Astilbe rivularis                               

                    Meconopsis wallichiana

                    Xerophyllum asphodeloides               

                    Galax aphylla

Lilies in cool, peaty hollows :­

                    Lilium superbum                              

                    Lilium giganteum

                    L.canadense                                   

                    L.pardalinum