Saucer Magnolia (Magnolia × soulangeana)

Saucer Magnolia

Magnolia × soulangeana

Cup-shaped blooms paint early spring in soft pastels. Deciduous flowering tree; common name: Saucer Magnolia.

Full sun
1–2/week
Moderate
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Plant Needs

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Sunlight Full sun to partial shade; prefers full sun for optimal flowering, tolerates light afternoon shade in hot climates
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Watering Water deeply when the top 15–20 cm of soil dries out; avoid overwatering to prevent root rot
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Temperature Hardy to -15°C; protect young buds from late spring frost damage to preserve flowering
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Characteristics

  • Leaf: Oval to elliptical, dark green, 10–20 cm long, smooth margins, turning yellow in fall
  • Flower: Large saucer-shaped blooms, 10–15 cm wide, pink-purple exterior with creamy white interior
  • Stem: Gray-brown bark, smooth when young, developing shallow furrows with maturity
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Care Guide

Watering

Water deeply every 7–10 days during dry spring and summer periods

Fertilization

Apply balanced slow-release fertilizer once in early spring before bud break. Top-dress with compost annually to enrich soil nutrients without chemical inputs

Composted banana peel tea:Compost banana peels for 2–3 months, steep in water for 24 hours, dilute 1:20 for root drench to avoid nutrient burn
Pruning
  • Prune immediately after flowering to avoid removing next year’s developing buds
  • Remove dead, damaged, or crossing branches to improve canopy airflow and structure
  • Thin overcrowded growth to maintain a balanced, open shape
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic; no toxicity risk for cats

Humans: Non-toxic to humans; no known adverse health effects from ingestion or contact

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Garden Uses & Culture

Culture: Symbolizes spring renewal, beauty, and perseverance in temperate garden traditions

Usage: Ornamental landscape tree; cut flower arrangements for indoor decor