Spring Snow Crabapple Fruit

Question

Hello! I have a crabapple tree that was sold to me as a Spring Snow fruitless variety. For the last 18 years it has held true to that, and yet, this year, it is producing fruit. I’m wondering if anyone can help me solve this mystery! I’m attaching pictures of the tree. It seems to be a Spring Snow in every way except the new appearance of fruit this year!

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Answer 1

It is likely that one or more of the branches originate below a graft point. Those branches will be a different cultivar than the top grafted scion. Otherwise, the cultivar should be, completely, fruitless.

https://www.gardeningknowhow.com/ornamental/trees/tgen/can-grafted-trees-revert-to-their-root-stock.htm