Viewing post #2764090 by AmberLeaf

BigBill said: Why not purchase a small rubber pond liner to fit inside the box? That would have filled the space easily without the work.
None of the plants that you mentioned are really pond plants, they are houseplants in the broad use of the word. With the exception of course of pond lilies.
Water lilies require not only good sunlight to bloom reliably but warmth as well. What is your plan for keeping the water warm enough. And water lilies are not floating plants. They are anchored in pond soil or the muck on the bottom of the pond.
I had an outdoor pond on Long Island for over 35 years. I grew pond plants, lilies, iris, Cardinal flower, water lettuce, water hyacinth. But I am a little unsure of your goal.
My Tropical water lilies went dormant when the water in the pond remained below 70 degrees F. I overwintered them in my greenhouse where they barely survived due to 58-60 degrees at night.
Native lilies flowered in cooler water, 65-70 degrees F. but required great light. I had to keep things pruned around the pond in order to keep the sun as strong as possible and even at that they were never prolific bloomers.

Finding things in the UK can be very hard as a lot of the stores just sell the very basics now and often don't sell what your looking for but not only that, the wooden box wouldn't have been strong enough to hold a pond liner full of heavy water.

Thanks for the advice on the water lilies... lighting is an issue so I may not be able to grow pond lilies but perhaps there are some low light tolerant water lily's out there?

Because of the lighting situation I'm not going to have bright sunlight which is why I've selected low light tolerant houseplants plus they are a lot easier to grow in low light indoors and they look just as nice. Keeping it warm isn't an issue as my house is always warm.