Start from the bottom of this board, trying to make rows on the bottom flowers because as you do that, crops will fall from the top and if you are really lucky, they will make rows themselves and open the upper flowers as they fall past.
You need that to happen and you also need combinations and rows of 5 crops. Not just to get a lot of crops collected but to get added points on each crop. Then you can make rows out of higher points crops and need to collect less.
Once your flowers have gone, you will find you get even more points because your grass will be free. That is where your points can be made up.