Poland does produce a lot of apples and they are delicious. According to a recent EU survey, they are now recognized by the European Union as being the biggest at producing apples.
I loved to take a drive in Poland, especially near Warsaw because one could drive by miles of apple trees growing in their perfect rows, humble in stature but robust in delivery. Poland also produces berries, such as black and red currant. They make excellent jam or jelly as well as syrup and schnapps. As for vegetable crops one would notice immediately potatoes and cabbage, staples in the Polish diet. When in Poland, you have to try Bigos, a cabbage stew like dish with pork, mushrooms and even dried prunes.