Yes, PANSIES is a Scrabble word!

Letter values in Scrabble US: P 3, A 1, N 1, S 1, I 1, E 1, S 1.

Is it a valid word?

PANSIES is a valid word in the official Scrabble dictionary (US), the UK Scrabble Dictionary and Words with Friends (ENABLE).

large-flowered garden plant derived chiefly from the wild pansy of Europe and having velvety petals of various colors
a timid man or boy considered childish or unassertive
offensive term for an openly homosexual man

Also: viola tricolor hortensis.

Not playable in Scrabble US: MILQUETOAST.