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Magnolia virginiana

This North American native woody plant grows as a small tree or large shrub to about 10–20 ft tall, tolerates shade, bears lemon-scented waxy-white flowers in June, and prefers acidic, moist to wet but well-drained soil in sheltered sites up to zone 5.

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Common Names

Sweetbay Magnolia, Swamp Magnolia, Laurel Magnolia, Swamp-Bay, White-Bay

Summary

Sweetbay Magnolia (Magnolia virginiana) is a North American native that grows as a small to medium tree or large shrub in the southeastern United States, often multi‑trunked in cooler northern areas or single‑trunked and evergreen in milder southern climates, typically 10–35 ft tall and wide in the North and up to 60 ft tall in the South; leaves are 4–6 inches long, glossy dark green above with a silvery underside, and fragrant creamy white flowers are 2–3 inches across with 9–12 petals, blooming in spring to early summer, followed by cone‑like fruits with bright red seeds; bark is smooth and gray, and the plant favors wet, acidic soils in swamps, lowlands, or along streams.

It tolerates full sun to partial shade and consistently moist, acidic soils, including swampy sites, and is hardy in USDA zones 5–10; it serves as a specimen or screen plant near ponds or woodland margins and provides wildlife value as a larval host for swallowtail butterflies, with seeds eaten by birds and small mammals. Propagation is possible from seed or semi‑hardwood cuttings, and pruning is minimal after flowering to maintain shape.

Lifecycle

Perennial

Height

10-35 feet

Spread

10-35 feet

Hardiness Zones

Zones 5-10

Sunlight Requirements

Ideally Full Sun to Partial Shade, tolerates Full Sun to Partial Shade

Soil Type

Moist, acidic soil

Soil Drainage

Moist, well-drained soil

Soil pH

5.5-6.5, slightly acidic soil

Bloom Color

Creamy white

Bloom Time

Spring (May–June).

Foliage Color

Dark green on the upper surface with silvery undersides.

Fall Foliage Color

Green

Leaf Lifecycle

Other (climate-dependent: deciduous in northern ranges, evergreen or semi-evergreen in milder southern ranges)

Growth Rate

Moderately fast-growing.

Seasons of Interest

Spring, Summer, Fall, Winter

Propagation Methods

Seeds, Layering, Cuttings, Grafting, Root sprouts

Attracts Wildlife

Attracts butterflies, other pollinators, and birds

References

Magnolia virginiana in Flora of North America @ ef…. efloras.org.
Magnolia virginiana: Complete guide to care, uses,…. en.jardineriaon.com.
Rain Garden Plants: Sweetbay Magnolia. extension.psu.edu.
Magnolia virginiana (Sweetbay or Swamp Magnolia). mgnv.org.
Sweetbay magnolia | Magnolia virginiana. mortonarb.org.
Sweetbay Magnolia. piedmontmastergardeners.org.
Magnolia virginiana. plants.ces.ncsu.edu.
Sweetbay (Magnolia virginiana) Plant Guide. plants.usda.gov.
IRC - Natives for Your Neighborhood. regionalconservation.org.
Woody Plants Database. woodyplants.cals.cornell.edu.
Sweetbay Magnolia. chesapeakebay.net.
Sweetbay Magnolia (Magnolia virginiana): A Complet…. gardenia.net.
Sweetbay Magnolia Care: Tips For Growing .... gardeningknowhow.com.
Magnolia virginiana - Plant Finder. missouribotanicalgarden.org.
Magnolia virginiana L - Southern Research Station …. srs.fs.usda.gov.
World Flora Online. worldfloraonline.org. June 2024.