Showy 39fibre Optic39 Flowersalso Known As Isolepis Cernua This Superb Oxygenator Has Amazing 39fibre Optic39 Flowers! These Decorative Plants Provide Shelter And Breeding Areas For Wildlife And Are Also Superb Natural Water Filters.1 Litre Pot Grown Plants Are Fuss Free Just Plant Them Straight Into Your Pond! see Diagram For The Right Planting Depth.height 30cm. flowers July septemberplanting Depth 0 10cm