The pond margins are the very edges of the lakes and ponds. Water loving plants grow here. These include; thistles, willow herb, alder, crack willow, bindweed, meadow sweet, bittersweet, great hairy willowherb, reed, wild angelica, sedge, nettle, woody nightshade, reed mace, water forget-me-not, water plantain, marsh bedstraw, marsh valerian, bistort, skullcap, southern marsh orchid and water mint.