I do not know a lot about Water Lilies but I know a man who did.
Major Percy Stewart carved out the two lakes at Burnby Hall Gardens to provide private trout fishing for himself and his friends. In the 1950′s he planted a small collection of water lilies to beautify his trout lakes. Now this garden is home to a National Collection of Hardy Water Lilies. If you visit you will see why it is the biggest collection, of over 80 varieties, to be found in a natural setting in Europe.
Tips for Growing Hardy Water Lilies
- Water lilies normally require several hours of full sun each day to flower properly,
- Avoid heavy shading over the pond
- Most varieties tend to do best in undisturbed water, so they should be planted away from fountains and waterfalls.
- Plant out between late spring and summer so that they can establish themselves before winter.
New Water Lilies
- The plants should be prepared by pruning any long roots and removing overly long stems or old foliage to encourage new growth.
- Pot up in suitably sized plastic mesh pond baskets. Initially they need to be supported so that they are no more than 6 inches below the surface
- Gradually lower as they grow until the container can finally rest on the bottom of the pond.
Care and Maintenance
- Blooms are short lived, lasting only three or four days
- Rapid leaf or pad growth will happen in good conditions. This helps control algae.
- Split large clumps to propagate new plants
- Feed with special tablets of fertilizer and deadhead after flowering.
Check out Dwarf Water Lilies.
A selection of Water lily varieties are covered on an earlier page
Pond wizard is a treatment that will help control algea and increase water lily flowers – available from Thompson Morgan



I’m a big fan of hardy water lilies such as the ones you’re showing – mind you, I have to be given I’m in Canada.
You also touch on an important point in your note about planting – here in NA the earlier you plant the hardy lilies, the better it is. Get the ice off the pond and start digging, dividing etc. I’ve written some articles about them along with a basic video right here http://www.water-gardens-information.com/water-lilies.html