Why Won the Grape Vines Produce Fruit?
Many edible grape varieties aren’t adapted to the local Puget Sound climate with its cool summer temperatures. There’s just not enough heat for fruiting. Be sure that the plants are set out in full sun. Several excellent grapes for this area include Interlaken,’ a green seedless for fresh eating and drying into raisins. A blue seedless grape called Venus’ does well. For making wine, try growing Madeleine Angevine,’ a heavy producing grape that ripens in October and yields a white wine. Do not over-fertilize grapes; in many soils, no fertilization is necessary. Grapes flower and fruit from shoots produced off one-year old wood. Incorrect pruning could reduce or eliminate the crop.
