Looking for fruit/nut tree varieties--Mine keep dying!

OK, I found it... I'm in Rocky Ford Colorado. 4000 ft.. High alkaline soil, heat at 105 per day for 8 weeks.. I would like to plant an Orchard.. I like Nectarines, Cherries, Green Apples.. All 5 trees died last year, replaced this year.. Cherry and Nectarines died, Apple trees still holding.. I would like to plant some nut trees too on
Kaitte's Homestead.

Does anyone have any suggestions, the trees sold here are supposed to be for this area, but for the most part they DIE!!

Howdy Kaitte, welcome to permies !

First of all lets talk about your soil, it might not be the trees fault after all. What kind of soil do you have in the orchard? Mulch? What type of mulch or do you add anything to the soil? Manures, compost, woodchips etc. Do you irrigate? Where are you getting the trees from? can you list the varieties of fruit that you are trying?

Is there anyone in your area who is growing fruit trees? Any old trees around? What varieties and what type of soil are they in?