Wetland Plants - Offers water lilies and bog plants for the garden. Also offers pond starter packs. - http://www.wetlandplants.co.uk/
Paul Bromfield Aquatics - Pond plants, water lilies, and marginal and bog plants from specialist Hertfordshire nursery. Buy online. - http://www.bromfieldaquatics.co.uk/
Riverside Nursery - Pond equipment, pumps, filters, food and accessories plus aquatic and architectural plants to buy online. - http://www.riverside-group.co.uk/