6 Poppy Flowers
The way to move the bulls in as little moves is this.
Top two straight to the right on their rows. If you can make a vertical row that moves both even better :)
Bottom one right to hit the poppy, then up to the higher poppy in the middle.
Move the other two back to the left and down, so that you end up with them both in the corner, one above the other, then move them to the right.
One bull needs to move to the last column then up for the final poppy.
You can do them in other orders, but unless you have a run of co-operative crops, you will need the moves for gathering crops.