Porthos Cherry*New Release* Porthos delivers exceptional sweetness for a zone 2 hardy sour cherry, with dark red fruit that ripens in early to mid August and a lovely, balanced acidity. The cherries are large (up to 6 g each) and versatile for fresh eating, freezing, pies, preserves, and wine. This compact, upright, multi stemmed shrub grows about 2 m (6 ft) tall and wide, making it ideal for food forests, permaculture plantings, or productive edible hedges.