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We have a raised pond one side is on the patio then steps down to a small patio the garden side is a rockery. As the pond is square and has an overhanging stone top it is difficult for the frogs, toads and newts to get in and out. We would like to extend the pond from the square maybe to an oval with a smaller rockery and maybe some seating cant quite picture how to do it.
The simplest solution would be some upright marginals planted at the edges of the existing pond to allow inscet larvae to climb out and transform into dragonflies and so on, otherwise they're stuck for ever in the water with no escape. Then add a decorative piece of driftwood to one side, touching the sides and extending up and out so that any critters that fall in can climb out.
Anything else means a major rebuild which will be complicated and possibly expensive.
Unfortunately we cant plant on the edges of the pond as it goes straight down. We have tied some wood against the side so as to allow frogs etc to escape and also we have a lot of lily pads.
We had (we think) a mink in our pond which killed all our fish (headless bodies on the patio) not very nice. We have found that we also have a giant diving beetle the offspring of which hasbeen killing all our tadpoles, newts and possibly baby fish that survived the massacre. Is there any hope!
Thanks for the information. We have still got our thinking caps on!
You can stand pots of marginal plants on bricks to bring them up to the right depth.
You can buy the special pots in a good garden or aquatic plant centre. The advice these days is to plant into mostly grit as this anchors the plant and prevents soil leaking into the pond water and making it a)muddy and b) rich enough in nutrients to grow algae.
Another alternative is to create a second pond below the original and make it as informal and wildlife friendly as you like with at least one shallow sloping side for critters to get in and out and maybe a pebble "beach". You could think about having a gentle waterfall or schute from the higher to the lower but that would mean installing a pump and filter and also lowering one part of one edge of the higher pond to let water flow over. You'd still need to keep the escape route in the top pond.
Could you attach flat bottomed baskets to untreated wooden 4 by 4 posts to stand in the pond below water level and plant up with pond plants. If you could place them in carefully you shouldnt damage the liner.
Thanks for the information. We have thought of installing a waterfall and another small pond but I can imagine problems occurring with the pump etc. so I am not too keen. We did make a brick tower and put a marginal plant on top unfortunately something large (not sure what) got into the pond one night and dislodged the plant and the top bricks. The plant never really recovered.
The posts idea could work but I am a bit worried about the liner especially as we have criters getting in our pond at night.
Thanks again for all your help.