I have about two to three tablespoons a day of coffee grounds, and I just randomly hurl them on the flower garden, especially the roses. I am too mean to put compost on the flowerbeds, just copious quantities of leaves in the autumn, and the coffee grounds.
I reserve compost for the vegetable garden. BUT, to heat up my compost I use 24 – 36 hours worth of urine in a watering can, (donated by my husband, or any male visitors, who have the correct apparatus!) to pour over the heap, about every four or five days when I “do” the compost. I have done this for over 40 years. And now that I have given the compost heaps insulated covers , my compost is now VERY hot.