fruit trees for gift to Iowa
My brother- and sister-in-law recently bought a new house in central Iowa, zone 5a, and I'd like to give them some fruit trees/bushes/vines for a gift. I have several questions about what would work best in Iowa. I'm concerned about cold hardiness, and I also want to avoid any major disease or pest problems and I don't know what those would be for Iowa.
I know my brother-in-law would like a couple apple trees. I was thinking maybe a Gold Rush, Pristine, or Liberty. Are there better no-spray candidates? I know he has particular ideas of what size tree he wants, which I need to find out, but do any of you recommend particular dwarf and semi-dwarf rootstocks?
I'd also like to give them some kiwis. Will arguta hardy kiwis do alright there? Are some hardier than others? Ananasnaya is supposed to be especially hardy according to one source. Is there an especially hardy male? Or is a kolomitka much more likely to survive and produce there than the argutas?
With regards to pear, is fireblight a concern in Iowa? Are there rootstocks I should avoid or prefer specifically for Iowa? I may go for something bigger/quicker, but would it even be an option to dig up a wild callery seedling here and graft onto that for him?
I was thinking I'd avoid stone fruit unless it would be substantially more trouble-free (pests, brown rot, etc.) in Iowa than on the East Coast. It wouldn't, would it?
I was also thinking maybe a Princess Diana or Prince William serviceberry. Any recommendations as far as serviceberries?