Alice Du Pont Mandevilla (Mandevilla x amabilis 'Alice Du Pont')

Alice Du Pont Mandevilla

Mandevilla x amabilis 'Alice Du Pont'

Trumpet blooms unfurl like pink silk, a tropical charm for trellises. Evergreen climbing flowering vine; common names: Brazilian jasmine, Alice Du Pont dipladenia.

Partial sun
2–3/week
Moderate
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Plant Needs

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Sunlight 6–8 hours of direct morning sun; shelter from harsh midday sun to prevent leaf scorch
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Watering Water deeply when the top 2–3 cm of soil dries out; avoid standing water to prevent root rot
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Temperature Thrives at 18–27°C; protect from frost, maintain temperatures above 10°C in winter to avoid leaf drop
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Characteristics

  • Leaf: Glossy, dark green, oval to lanceolate leaves with smooth, entire margins
  • Flower: Trumpet-shaped pale pink blooms with bright yellow throats, 7–10 cm in diameter
  • Stem: Woody, twining stems adapted for climbing vertical supports
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Care Guide

Watering

Keep soil consistently moist but not waterlogged

Fertilization

Diluted balanced liquid fertilizer every 2 weeks. Avoid fertilizing in winter when growth enters dormancy

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, dilute 1:20 for root drench; avoid raw peels to prevent pest infestations
Pruning
  • Deadhead spent blooms regularly to encourage continuous flowering throughout the growing season
  • Trim overgrown stems in early spring to maintain a compact, climbing shape and promote new growth
  • Remove yellowing or damaged foliage to improve airflow and reduce the risk of fungal disease
  • Tie twining stems to trellis supports to guide climbing growth and prevent tangling
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Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Toxic; contains cardiac glycosides that disrupt heart function

Humans: Contains cardiac glycosides; ingestion causes mild oral irritation, nausea, or vomiting in large quantities

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Garden Uses & Culture

Culture: Symbolizes tropical grace and romantic charm; popular for wedding arch decor

Usage: Ornamental climbing vine for trellises, patios, hanging baskets, and indoor focal points