Plums will grow in this area, but European types are suggested over Japanese types and hybrids. Suggested varieties include 'Stanley,' 'Bluefre,' 'Green Gage' ('Reine Claude'), and 'Damson' ('Shropshire'). Plant any two of these European types for cross-pollination. The most serious problem on plums in our area is black knot disease, which is difficult to control.