How are you wanting to use the grass sprite?
My recommendation would be to use data statements.
FOR Y = 1 to 5
FOR X = 1 to 5
READ GRASS%
NEXT
NEXT
DATA 1,1,1,1,1
DATA 1,1,1,1,1
DATA 1,1,1,1,1
DATA 1,1,1,1,1
DATA 1,1,1,1,1
You would have to go through the 255 colors that QBASIC offers in SCREEN 13 and find all the green colors. (Not going to do that for you.)
Or, if you want, I can tell you how to use the PALETTE command to get some nice greens. It's really easy.