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The Plant Guide

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Bigleaf magnolia

Magnolia macrophylla

mag-NO-lee-ah mak-roe-FIL-lah

This deciduous species has remarkable leaves that are over 3 feet long and 1 foot wide. They are light green above and silvery beneath. It flowers in early summer with creamy-white, fragrant blossoms that reach a foot across.  Magnolia macrophylla grows up to 40 feet tall and wide. It is native to North America.

CareGrow in moist, well-drained, preferably acidic to neutral soil in sun or partial shade; magnolias do not tolerate wet feet. Magnolia flowerbuds are susceptible to late-season frosts; shelter large-leaved species from windy locations. Prune trees and deciduous shrubs in late winter or late summer to prevent bleeding of sap; prune minimally to maintain a healthy framework. 

PropagationSow seeds in autumn or stratify to hasten germination. Root softwood cuttings in early summer. Magnolias can be layered in early spring, grafted in winter, and propagated by bud in summer.

ProblemsBacterial leaf spot, spot anthracnose, canker, dieback, butt rot, powdery mildew, anthracnose, fungal spots, weevils, snails, scale insects, thrips, planthoppers.

  • Genus : Magnolia
  • Plant Height : 30 feet or more
  • Plant Width : 30 feet or more
  • Zones : 5, 6, 7, 8, 9
  • Characteristics : Fragrant Flowers, Showy Foliage, Showy Fruit
  • Light : Full Sun to Partial Shade
  • Maintenance : Low
  • Moisture : Medium Moisture
  • Growth Rate : Moderate
  • Plant Seasonal Interest : Spring Interest
  • Bloom Time : Summer
  • Plant Type : Trees
  • Flower Color : White
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