I've read that peach trees should be fertilized 3-4 times a year. What would these times be for SW IA? Also, what would the formula be? Would 10-10-10 work? Joy Smith, Cass County Maste Gardener, Class of 1999
Cass County Iowa
It is not advisable to fertilize peach trees 3 or 4 times a year. In fact, its generally not necessary to fertilize fruit trees in Iowa. Most Iowa soils can supply sufficient amounts of nutrients to fruit trees.
If the peach trees don't appear to be growing well, a small amount of a balanced garden fertilizer, such as 10-10-10, could be sprinkled around each tree in early spring before bud break.
Excessive fertilization, such as 3 or 4 applications per year, would likely discourage flowering and fruiting.