What is Best Way To Edge a Flexible Rubber or Plastic Liner Pond?
Question ... What are the best ways to conceal an untidy liner around the edge of a pond?
Answer ... Normally there might be a stone edging around a pool whose overhang will largely obscure the liner. If not, plants will obligingly cover up a multitude of sins either planted as marginals on the inside of the pond or planted around the margins as ground cover around the edge and allowed to make their way to the water. Dont be tempted to grow turf over unsightly liner right down into the water. It will only always act as a wick for water out of the pool and chemicals into the pool. Once you have plants established as dam of marginals around the inside edge of the pool, if there is still liner visible, you can backfill up behind the baskets with gravel and larger pebbles to a certain extent.
Plants for around the outside edge would include the likes of creeping jenny (Lysimachia numularia), small periwinkles (Vinca minor) or even the rockery type campanulas. Rockery plants in general would work very well if you wanted to dispense with the marginal planting or supplement it with a rockery that starts at the marginal shelf level in the pool and rises up to water level and beyond, backfilled with gravel. Water forget-me-not (Mysostis palustris), brooklime (Veronica beccabunga) and small sisyrinchiums would thrive here. Be careful not add anything too rampant here though.
A more clinical approach would be to drape a strip of the edging liner material that is PVC covered with gravel that is glued onto the surface. The top edge can be pegged into the surrounding soil or wedged under any edging stones. Any visible edges can be obscured with a bark mulch or gravel.