When you use this method during the Spring, you always need to revisit the sites to be sure that young fruits are following the flowers. It can be difficult to spot immature fruit initially, because it is camouflaged very effectively by the green leaves.
It's a little early yet to tell whether the army of Apple trees that I have spotted will eventually produce good fruit. many of them may turn out to be Crab Apples, which can also be used in many interesting ways.
At the Urbane Forager, the first things we pick each year are Elder-flowers. We make cool Cordial and chaotic Champagne from these delicately scented ivory blooms.
Elderflower drinks are soon followed by waves of sweet, dark Cherries, and then bucket loads of multi-coloured wild plums. Hopefully, Summer will be in full swing by this time.