SHASTA is a playable word

shasta Scrabble® Dictionary

noun
pl. shastas
a flowering plant
26 Playable Words can be made from "SHASTA"
   2-Letter Words (7 found)
   3-Letter Words (12 found)
   4-Letter Words (5 found)
   5-Letter Words (1 found)
   6-Letter Words (1 found)