Peach tree won't ripen fruit
If you have any answers I would sure like your opinion.
In 2008 I planted 4 peach trees. All have grown well but shown yellowing in the supper as I live on Alkaline soil(7.6).
Three set fruit that I manage to get some of and they taste good.
One tree(a variety called La Feliciana), the healthiest, prettiest one, looks great, sets fruit well that get big and look great. They develop that wonderful red blush and my mouth starts to water. I check for ripeness but they are hard. Then they start dropping off the tree 2-3 at a time while they are hard. No fruit ever ripens. This has happened 4 years running.
I use compost and an organic fertilizer which seems fine for the rest of the trees.
I am hoping this year will be different since I was able to keep the leaves green all summer by using a fertilizer with iron and an acidifier.
Any ideas what might be causing this?