Mount St. Helens® Plum Tree

Mount St. Helens® is an ornamental purple-leaf plum selected for dark foliage, light-pink spring flowers, and a dense, rounded crown. It is a sport of Newport plum and is described as especially hardy for climates with challenging winter conditions. ## Form and Color The [J. Frank Schmidt & Son profile](https://jfschmidt.com/all-trees/introductions/mt-st-helens-plum/) lists an upright-spreading, rounded shape, purple foliage, light-pink flowers, and an approximate mature size of 20 feet tall by 20 feet wide. The leaves emerge earlier in spring and retain their rich color into summer. The grower identifies the selection as a sport of Newport with a stronger trunk and denser head. ## Placement Allow room for the mature crown and place it where the seasonal foliage color can be appreciated. The grower lists USDA Zone 4 and notes performance in extreme climates. Keep the mature crown clear of overhead wires and verify local planting setbacks. ## Maintenance Water regularly while the tree establishes, then adjust to local rainfall and soil drainage. Prune selectively to preserve the rounded framework and remove damaged or crossing branches.