I finally passed. Got a round with extreme lucka, think 4 flowers was removed in The first move. My only tip is that it is importent to get rid of the flowers at the top to get clean fruits spinning around.
Phew! Used a new tactic, I used a few shovels early on in the game, to clear the flowers as soon as possible. I chose the side that was clearing the flowers the most first. Once they were gone I set-up a bottom row of 3 good crops by using a shovel, and within a short time I was down to needing 80 or so crops. I used a tractor to clear the row containing most points, that left me needing 60 or so. Counted each type of crop to see which would give me most points using a dog +1, and set him loose. Had one move left, and thankfully made a final row to get the last few crops. One star! I had 6 shovels, I seem to have got the knack now of getting a double-bubble, though you have to be quick