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Tree · Magnoliaceae Draft — unreviewed

Southern magnolia

Magnolia grandiflora L.

Also called southern magnolia, bull bay.

Large evergreen tree with glossy leathery leaves and big fragrant white flowers in late spring. A bold year-round screen where there is room.

Size over time

Typical landscape size 15–24 m (49–79 ft) tall and 9–15 m (30–49 ft) wide; medium growth, about 25 years to maturity. Intermediate sizes use the planner’s growth curve (k = 0.25) from the BB-2in install size.

0510152025mPlanting3.4 × 1.5 mYear 311.9 × 7.0 mYear 1018.2 × 11.1 mMature19.5 × 12.0 m

Bloom

Creamy white flowers, May–Jun (northern-hemisphere months; timing shifts with region and season).

Bloom calendar: months each plant is in bloom
PlantJFMAMJJASOND
Southern magnolia : May–Jun

Design notes

  • Dense shade and constant leaf litter make underplanting and lawn nearly impossible; leave lower limbs to the ground.
  • Compact cultivars (e.g. 'Little Gem') suit small lots; 'Bracken's Brown Beauty' is hardier for zone 6 sites.

Regions

Native range: Southeastern Coastal Plain from North Carolina to Florida and east Texas.

Native to these OpenLandscape3D pilot regions:

Native status describes where the species occurs naturally. It is not a promise that it suits a particular garden; site conditions decide that.

Related plants

Plan with Southern magnolia

Place it in a design, check it against your zone, light and moisture, and see it at year three and year ten.