Posted: 01/05/2014 at 00:01
Frogs, certainly do not need plants to help them with spawning. Toads and newts spawn strings of eggs. I can't remember if they attach them to water plants, but I suspect they do attach them to underwater stems.
Tadpoles appreciate plants to hide under as they develop, to protect them from getting too hot.
Water lilies are desirable; there are small-leaved ones if the pond is not very big.