Plant Name: Stanley Plum
Scientific Name: Prunus domestica ‘Stanley’ — Stanley European Plum, Stanley Prune Plum
Mature Height: 15–20 ft
Mature Spread: 12–18 ft
Growth Rate: Fast (2–3 ft/year)
Sun: Full sun
Water: Moderate; ~10–15 gal/week while establishing, then ~15–20 gal every 7–10 days once established; increase during fruit development and extreme heat
Foliage: Medium to dark green, deciduous
Fall Color: Yellow to orange
Flower Color: White
Bloom Time: Early to mid-spring
Fruit: Medium to large, elongated, dark blue-purple skin with greenish-yellow flesh; sweet, firm, and flavorful
Harvest Time: August–September
Hardiness Zones: 5–9 (−20°F to 20°F)
Features: Classic European plum; excellent fresh eating; outstanding for drying and preserves; firm fruit; high sugar content; reliable producer
Additional Facts: Self-fruitful and does not require another plum for pollination. Stanley is one of the most popular European prune plums and is particularly well suited for drying.