I live in the Philippines, and here they have what they call Frog Grass.
I would like to know, what this plant is.

Hi, maybe you are referring to water lillies (http://www.yard101.com/1786-water-lillies-plants-frogs/)?

This article is also good for learning how to attract frogs to your garden (http://www.yard101.com/1589-Frogs-Gardens/).