I have a 3 -in-1 tree with Chojuro, Shinseiki, and Korean Giant. Originally, it had a 4th variety but it never produced anything after several years so I cut out the one branch. However, I have had more than enough fruit with the remaining three varieties. I am picking both Shinseiki and Chojuro now. Fortunately, Korean Giant ripens a bit later. I already have enough to handle right now! As for disease problems, so far I have not encountered any though I have had some issues with the leaves burning if we suddenly get hot weather in the spring. There can be pest issues with codling moth so I use plastic sandwich bags to protect the fruitlets from codling moth in the spring. The bags also seem to protect the fruit from what I presume is stinkbug damage. I am trying to maintain the tree height closer to 10' rather than let it reach 12-15'. As for the Chojuro fruit, the fruit is definitely a firm, crisp, and juicy fruit. They will store quite well in a fridge but eventually they will start to get brown/mushy. I try to preserve them by cooking them with some spice (cinnamon, nutmeg, allspice) and sometimes brown sugar and then freezing them in jars. They do not cook down like apples. I have thought about seeing if I can reduce the volume by putting them in a blender to make more of a sauce. I am also giving them away to neighbors who will take some....

I tried to find out pollination information for you by looking at the Raintree Nursery website at their pollination chart. However, they don't sell Hosui so it wasn't helpful. However, you should be able to find out from the location where you purchase your tree what are good pollinators. On the other hand, according to the Raintree chart, neither Chojuro or Shinseiki should be able to pollinate Korean Giant but I have never had a problem getting Korean Giant fruit!

I hope this information is useful.

redberry