Japanese ornamental cherries may occasionally fruit, in some situations. I have gotten the opportunity to taste one of these fruits when they are fully ripe. When fully ripe they are very dark and have a very dark scarlet juice that stains. The fruits can be pretty juicy, but the fruits are pretty small and don't have much edible flesh, a very small flesh to seed ratio. The taste has a lot of bitterness and are not very sweet. The first thing that hits you is the bitterness, but after that there's an aftertaste of intense cherry cough syrup, which is a little stronger tasting than regular sweet cherries. It almost makes me think these could be used for culinary flavoring, but you'd have to want bitterness too (like in certain alcoholic cocktail drinks). Might not be a good idea to eat too many though. The most common Japanese ornamental cherry variety, Yoshino, is a very poor pollinator, so usually cannot pollinate itself, which means no cherries. Kwanzan is a sterile variety, cannot produce fruit, and the others require a different cherry variety (any species) to pollinate it if any fruit is to form.

Depends on the berry. Many of the store-bought berries are hybrids, so there is no telling what the berry characteristics will be on your seed-sprouted plant. If you have purchased heirloom varieties like some small growers or farmers markets might offer, or native berries like blackberries when available, those would then come true.

"subgenus" may be more appropriate (or maybe not, taxonomists have put both sweet and sour cherries into the subgenus Cerasus). All these different cherry species are very closely related, if one wants to consider them different species. This is one example where the line separating different species is not a clear one. It could even be possible to consider the different cherry families as subspecies. After all, if they can freely interbreed and hybridize with each other, can they not be considered members within the same species? (by this definition we could divide all cherries into only 2 groups: those with 16 chromosomes and those with 32) Or one could attempt to divide cherries into different families: Sweet cherries (P. avium), sour cherries, Black cherries plus Capulin native to the American continent (put into same group), and Asian flowering cherries. Perhaps better classification could be provided if taxonomists utilized multiple degrees of species relatedness/separation, because it is ambiguous whether some of the different cherries should be classified as entirely separate species or subspecies within a singular species, neither of which would be wholly accurate.

I started out just cutting trees that were close to the house, then I expanded it to cutting loblolly field pines that were leaning towards the house and dangerous. Then I expanded it a little more to open up an area where I can put more attractive trees. And while doing THAT I discovered a lot of unhealthy trees that were just hurting the ones that could be better. And I just found today that a lot of my oak trees that I thought were healthy were being completely eaten up on the inside by ants! They cut one down that was right next to my garage, it was more than 36" in diameter but probably 20" of the center was completely eaten away :-O So now I'm having to take down the oak trees that are close to the house, too. As for moving them, I found this that worried me: Black cherry, like many large trees, develops an extensive taproot and therefore cannot be easily transplanted. Make sure you site your tree in its forever home for this reason. https://www.houzz.com/magazine/plant-black-cherry-trees-for-the-birds-and-bees-stsetivw-vs~67621489 With the smallest at 4' tall, I'm concerned that the roots might be MUCH larger than I can handle with a shovel! So I expect that, if I can get them dug up at all, it'll probably kill them :-(