London Wetland Centre Rain Garden Planting Areas Concept All areas are planted to give a long season of flowering display, with a main focus on late spring to autumn. Area Bioswale HaHa
Meadow Planting
Marginal Wetlands
Rain Gardens Perennial Planting New tree planting around building Shrub edge
Planting Concept A flower-‐rich edge to the garden in a sunken ‘ditch’. Key species include Iris pseudacorus (Yellow Flag Iris), Geranium sylvaticum (Wood Cranesbill), Lychnis flos-‐ cuculi (Ragged Robin). Primulas Approx 28 sq m. In year 1, sown with Pictorial Meadows Standard Mix. Will flower into autumn and will make good impression at September opening. Resow in autumn 2010/spring 2011 with perennial meadow mix. Possible robinsonian planting of perennials into this in places. approx 100 sq m Relatively bulky perennials to produce a flowering marginal edge to the stream, in permanently wet ground, and deterring access to the water. Key species include: Osmunda regalis (Royal Fern), Caltha palustris (Marsh Marigold), Lythrum salicaria (Purple Loosetrife), Cardamine pratensis (Lady’s Smock), Euphorbia palustris (Marsh Spurge), Ligularia stenophylla? Inula –Approx 50 sq m Perennials which generally grow well in all good garden soil. Approx 15 sq m. Blocks of contemporary Perennial Planting. The majority of species are good butterfly and bee plants. approx 16 sq m. A clump of silver birch, with coppiced hazels. Primroses sown or plug-‐planted beneath Mix of Guelder Rose and Sweet Briar. Exact extent of this to be decided on site, following works
Plant Lists Marginal Wetlands Number 30 30 20 6 16 5 8 75
Name Leucojum verum (Spring Snowflake) Caltha palustris (Marsh Marigold) Osmunda regalis (Royal Fern) Ligularia stenophylla ‘The Rocket’ Euphorbia palustris (Marsh Spurge) Inula racemosa ‘sonnenspeer’ Molinia caerulea ssp arundinacea Geum rivale ‘Lemon Drops’
Perennial Planting Number 30 30 30 30
Name Kniphofia ‘Tawney King’ (Red Hot Poker) Sedum ‘Purple Emperor’ Calamagrostis x acutiflora ‘Karl Foerster’ Aster x frikartii ‘Moench’ (MIchaelmas Daisy)
30 30 25 30 20 100 150
Leucanthemum ‘Sonneschein’ or ‘T.E.Killin’ (Shasta Daisy) Hemerocallis ‘Lemon Bells’ (Day Lily) Gaura lindheimeri Helenium ‘Moerheim Beauty’ Echinacea purpurea (Purple Cone Flower) Helianthus ‘Lemon Queen’ Primula veris (Cowslip) Tulip cluisiana
Rain Gardens Number Name 7 Helianthus ‘Capponoech Star’ 3 Telekia speciosa 50 Primula pulverulenta 50 Primula florindeae 30 Astilbe chinensis ‘Pupurlanze’ 25 Calamagrostis x acutiflora ‘Karl Foerster’ 15 Scirpus lacustris ‘albescens’ 15 Phragmites australis ‘Variegata’ 3 Rheum palmatum ‘atropurpureum’ 30 Penstemon ‘Husker’s Red’ 30 Geum rivale ‘Lemon Drops’ 30 Rudbeckia fuldida deamii 25 Iris sibirica 10 Rodgersia pinnata ‘superba’ 30 Persicaria bistorta ‘Superba’ 25 Lythrum salicaria 10 Filipendula ulmaria Seed mix: Lychnis flos-‐cuculi, Cardamine pratensis Green Roof Number
Name Sedum acre Sedum reflexum Sedum album Anthemis tinctoria Dianthus carthusianorum Oenothera speciosa Thymus serpyllum Thymus E.B.Anderson Allium schoenoprasum (chives) T
Bioswale HaHa Number 30 20
Name Iris sibirica ‘Tropic Night’ Iris pseudacorus
20 Caltha palustris 100 Lythrum salicaria 100 Primula florindeae 30 Hemerocallis ‘Lemon Bells’ 30 Geranium sylvaticum Seed mix: Lychnis flos-‐cuculi, Cardamine pratensis Woody Plants Number 5 5 20 20
Name Betula pendula Corylus avellana Viburnum opulus Rosa eglanteria