Fertilizing peach tree
I have two semi dwarf peach trees, 1 red haven and 1 hale haven. Confused about when to fertilize. Planted them 2 years ago. They were in fruit and about 6 ft tall when planted. Produced some fruit last year, more and bigger fruit this year. One is thriving and the other not as well. Have done nothing to them so far. I read to fertilize in August for next springs growth. Can anyone advise regarding this and if so, how much to feed them. Reading conflicting ideas. Thanks.