Richard Hentschel, host of Green Side Up, talks about problems with fruit trees not bearing fruit. There are some good reasons why fruit trees will not flower or will not bear fruit, even if they bloomed and produced the first year you planted them. It can take three to five years before flowers return as the tree recovers from transplanting shock. Proper training also will promote fruits sooner. Apples, for example, will need to be cross-pollinated, so even if they flower they may produce no fruit.