More than 1 possible answer.

I found 3 possible solutions :/.

Finally! too many solutions :(
SPOILER:
the wheat has two branches on the sides: c16/r11r14 and c10/r8-10
hope this helps.

Nice, thanks.

Again failed puzzle. Panoramix is a moron.

Another hint: All the corners are blank.

R20?c2-3,c7-11,c15.

Thank you.