I've had one for 3 years now and it's had a bunch of flowers on it but no fruit. I had what was supposed to be a good pollinator for it (Dapple Dandy) but it grew flowers earlier than the Flavor Grenade. Also I think the Dapple Dandy might have died on me this winter (The leaves just dried up on the branches instead of falling off like normal and it's very brittle now). I got a new Santa Rosa plum that's supposed to have flowers at the same time and it's been doing well so far. I'll know this spring if it can grow flowers at the same time.

Thank you for the comment. Sorry to hear about your Dapple Dandy. I have a Santa Rosa and a Flavor King that I planted this past October. Hopefully they do well, I don't expect any fruit this year as they are fairly young. I will hold off on the Flavor Grenade for now, let me know how it does this year.