This rhizomatous aquatic perennial is found in deep still waters and forms a clump. The large round bright-green leaves have up-turned margins with prickles and the white-pink cup-shaped flowers appear above the water level during summer. 
 
Hardiness zones 11 to 12 

Victoria amazonica is the largest aquatic plant on Earth growing in the still clear waters in the Amazon and the Madeira River in Bolivia. 

It prefers fertile deep sandy to clay loams that are under water and are rich and organic in a protected sunny poaition and is  frost and drought tender.

The Amazon Water Lily is grown for its large leaves and flowers. It is not commonly available commercially and is planted as a specimen in large tropical gardens or botanical collections, commonly under glass. It is fast growing under optimum conditions establishing in one season from seed but may be difficult to obtain requiring a specialised nursery. ID 1315

Victoria (vik-TOR-ree-a) amazonica (ă-ma-ZON-i-ka)

Nymphaeaceae (nim-fee-AY-see-ee)
Water Lilies