I've had mine for about 4 or 5 years and they flower a bunch and have had fruit for a few years.
Not sure what to do with them. They have unique flavor profile. I've read that I should wait
until they are very red so the sugars will build up.
I've found two volunteers in my pine windbreak. One had a few flowers, but I don't think they set fruit.
They other is probably only two year old and is small. They will spread on their own, but I don't know
how aggressive they are. With free fruit, I'm not sure I care.
I have clay soil here in Indiana and they seem to grow fine. They are a named variety Sweet Scarlet from
Rolling River Nursery. The plants have done great. I have them planted by some fruit trees.