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Rain Garden Plants: Sweetbay Magnolia

An informative guide to sweetbay magnolia (Magnolia virginiana), detailing its unique characteristics, site preferences, and value to wildlife.
Updated:
October 3, 2025

This is a slender, deciduous to evergreen multi-stemmed shrub or tree. It will grow more tree-like in the southern part of its range. Bark is smooth and pale gray. The simple, elliptical-shaped leaves are dark green above and silver below. Leaves are 2 to 6 inches long and 1 to 2.5 inches wide. Large fragrant, creamy white flowers open in the morning and close at night. Flowers measure 2 to 3 inches in diameter and have 9 to 12 petals. After flowering, showy, cone-like fruits develop that contain bright red seeds. It prefers moist, rich, organic soils but tolerates wet, boggy soils and heavy clay soils. It is intolerant of drought conditions. May need some winter protection.

  • Height: 10 to 30 ft.
  • Bloom color: White
  • Bloom time: May-June
  • Hardiness zone: 5 to 9
  • Salt tolerance: Moderately tolerant of salt spray. Intolerant of soil salt.

Site Conditions

  • Sun: Sun/partial shade
  • Soil: Moist, rich, organic, acidic
  • Hydrologic zones: Wet/moist
A close-up of the glossy, dark green leaf.
Leaf. Credit: Jodi Sulpizio, Penn State Extension
A close-up of the early growth of the cone-like fruit.
Cone-like fruit. Credit: Jodi Sulpizio, Penn State Extension
A close-up of the bright red seeds.
Seeds. Credit: Jodi Sulpizio, Penn State Extension
Shows multiple trunks and smooth, pale-gray bark.
Trunk and bark. Credit: Jodi Sulpizio, Penn State Extension
Shows full image of the shrub planted in a garden.
Growth habit in garden. Credit: Jodi Sulpizio, Penn State Extension

Sources

Missouri Botanical Garden 

The Morton Arboretum 

North Carolina State University 

Prepared by Jodi Sulpizio, Jessica Chou, and Constance Schmotzer. Peer reviewed by Scott Sjolander and Sandra Feather. Finalized by Jodi Sulpizio.