Simpson's Stopper (Myrcianthes fragrans)

Simpson's Stopper

Myrcianthes fragrans

Its fragrant white blooms release sweet citrusy notes at dusk. Evergreen ornamental shrub; common names: Simpson's Stopper, Twinberry Stopper.

Full sun
1–2/week
Moderate
🌱

Plant Needs

☀️
Sunlight Full to partial sun; tolerates light shade, but produces the most blooms in direct sunlight
💧
Watering Water deeply when the top 5 cm of soil is dry; avoid overwatering to prevent root rot
🌡️
Temperature Thrives in warm, subtropical temperatures; can tolerate brief light frosts down to 10°C but may suffer minor leaf damage
🔍

Characteristics

  • Leaf: Glossy, elliptical evergreen leaves; aromatic when crushed, releasing citrus scent
  • Flower: Clusters of small, star-shaped white blooms with prominent, fluffy stamens
  • Fruit: Round, red to purple berries that ripen in late Summer to Fall
  • Stem: Smooth, light brown bark on mature plants; young stems are green and slightly pubescent
🛠️

Care Guide

Watering

Keep soil consistently moist but not waterlogged; increase frequency during prolonged dry spells

Fertilization

Apply balanced, slow-release fertilizer once monthly. Avoid over-fertilizing, as this can reduce flower production

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water for 24 hours, then dilute 1:20 for root drenching to support flowering and fruiting
Pruning
  • Remove dead or damaged branches in late Winter to encourage new spring growth
  • Thin dense foliage to improve air circulation and light penetration
  • Shape the shrub after flowering to maintain desired form and size
  • Prune lightly for container cultivation to control height and spread
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA: Non-toxic to cats

Humans: No known toxic effects on humans

📖

Garden Uses & Culture

Culture: N/A

Usage: Ornamental garden shrub; provides food and shelter for birds via its berries; aromatic foliage can be used in potpourri