SelecTree: Tree Detail

ST. MARY MAGNOLIA
Magnolia grandiflora 'St. Mary'

Magnolia grandiflora 'St. Mary' Magnolia grandiflora 'St. Mary' Magnolia grandiflora 'St. Mary' Magnolia grandiflora 'St. Mary' Magnolia grandiflora 'St. Mary' Magnolia grandiflora 'St. Mary' Magnolia grandiflora 'St. Mary'

Photo Locations: Hoyt Arboretum - Portland, OR and Los Angeles County Arboretum - Arcadia, CA

General Notes

Utility Friendly Tree Utility friendly tree.

Blooms at a young age.

Has fragrant Flower.

Native to Southeastern United States.

Family: Magnoliaceae

Tree Characteristics

Erect or Spreading with a Low Canopy.

Oval or Rounded Shape.

Has Evergreen foliage.

Height: 20 - 25 feet.

Width: 15 - 20 feet.

Growth Rate: 24 Inches per Year.

Longevity 50 to 150 years.

Leaves Oval, Glossy Dark Green, No Change, Evergreen.

Flowers Showy. Fragrant White. Flowers in Spring, Summer or Fall. Has perfect flowers (male and female parts in each flower).

Prolific, Brown or Purple Follicle, Very Large (Over 3.00 inches), fruiting in Summer or Fall.

Bark Light Green, Fissured.

Shading Capacity Rated as Dense in Leaf.

Litter Issue is Flowers, Dry Fruit and Leaves.

Tree Site Conditions & Constraints

Sunset Zones 4 - 12 and 14 - 24.

Exposure Full Sun to Partial Shade.

Moist Soil.

Clay, Loam or Sand Texture.

Highly Acidic to Slightly Alkaline Soil pH.

Salinity Tolerance is Moderate on Coast.

Seaside Tolerance is Good in Mild Zone.

Pests & Disease Information

Resistant to Oak Root Fungus. Susceptible to Aphids, Scales and Spider Mites, Root Rot and Verticillium.

Health, Safety & Environmental Concerns

Branch Strength Rated as Medium.

Root Damage Potential Rated as Low.

None Known Health Hazard.

Attracts Birds.

Special Uses & Values

Screen.

Espalier.

Cite this tree:
SelecTree. "Magnolia grandiflora 'St. Mary' Tree Record." 1995-2017. Apr 26, 2017.
< http://selectree.calpoly.edu/tree-detail/magnolia-grandiflora-st-mary >

SelecTree Nursery Connection Map
Cal Poly / ESRI