Water poppies are adorable little pond plants with tri-pleated yellow blooms. Their blooms will spread across the surface of the water with lily-like green pads. They also add cover for fish and take up excess nutrients. Water poppies spread by extending their stems across the surface of the water. 

Scientific Name: Hydrocleys nymphoides
Height: Flowers can grow to 2 - 3 inches tall
Width: 2'
Bloom Time Blooms all summer long 
Fertilize: Fertilize throughout the growing/blooming season (June through September) 
Propagate: By stem cuttings
Hardiness Zones: 9 - 11