(12) Water Lettuce Floating Water Garden KOI Pond Plants Nursery Grown in Florida Aquatics Plants Nursery WATER LETTUCE is a GREAT floating Water Garden KOI Pond Plant!! If you have Water Hyacinths - this plant is a MUST HAVE - FISH LOVE 'EM!!! SUPER EZ TO GROW! Natural pond bio filter - keeps water cool in hot summer months! Looks like a beautiful sea foam green bloomed floating rose with velvet petals in your water garden