Gardenscapes-Level 65 is a bit challenging due to multiple obstacles you have on the field. Concentrate on clearing the field from crates first, especially the center between the walls. It would provide you with free space for more efficient moves and automatches, letting you beat the level faster. Then eliminate as much pieces as possible per every move to make the glasses appear on the field and collect them faster. Power-ups and automatches will help you with that, and you can also create the Rainbow blast faster if you make combinations of power-ups.
NOTE: Only 2 lemonades can be present on the field at the same time, so the next will only appear after you collect the previous ones.