Mount Royal Plum

Category: FT
Botanical name: Prunus 'mount Royal'
Height: 20
Width: 20
Water requirements: Moderate
Sunlight: Full sun
Lowest hardiness zone for growth: 4
Shape: rounded
Growth rate: Moderate
Bloom time: April to May
Level of maintenance: Medium
Potential diseases: Plum curculio is a native snout weevil that attacks the fruit in late May-mid June Fruits damaged by curculio will normally ripen very early and drop off the tree well before the rest of the crop is ripe. Damage can be controlled by spraying an insecticide (if needed) in June to protect the fruit from curculio injury. Black knot is a fungal disease that can infect plums and other members of the Prunus family. Fortunately, Mt. Royal appears to be far less prone to this disease than many other plum varieties. Eradication of the infected branches is the best way to control black knot should it occur.