You should plant the seeds on the turf. You can make turf from the coconut basin.

I'll give you a tip: If you wanted to make 40 fruits at the same time, you should make the following and place them near each other

French Window
Turf
Parterre
Fence

Once you plant the seeds, you will get 40 fruits at the same time, even more if you have a Mill in your home because this allows you to make more fruits in one sitting.

You can make apple, grape, cantaloupe, and mango syrups by mixing the fruits needed in a blender.

Apple Syrup: HP300, SP100
Mango Syrup: HP400
Grape Syrup: SP400
Cantaloupe Syrup: HP100, SP300