Red Buttons Hoya (Hoya pubicalyx 'Red Buttons')

Red Buttons Hoya

Hoya pubicalyx 'Red Buttons'

Clusters of ruby-red buds bloom into starry flowers, sweetly scented at night. Evergreen epiphytic vine.

Partial sun
1–2/week
Beginner
🌱

Plant Needs

☀️
Sunlight Bright indirect light; tolerate partial shade, avoid harsh midday sun to prevent leaf scorch
💧
Watering Allow top 2–3 cm of soil to dry between waterings; avoid overwatering to prevent root rot
🌡️
Temperature Thrives in 18–27°C; protect from temperatures below 12°C to prevent leaf drop
🔍

Characteristics

  • Leaf: Oval, leathery, dark green with subtle silver flecks; 5–10 cm long
  • Flower: Star-shaped, deep red-purple corollas with pale pink centers; clustered in umbels of 15–25 blooms
  • Stem: Slender, woody trailing/climbing stems with aerial roots for anchorage
🛠️

Care Guide

Watering

Keep substrate evenly moist but not soggy

Fertilization

Diluted balanced feed every 4 weeks. Avoid fertilizing in winter when growth slows to prevent salt buildup

Banana peel compost tea:Compost banana peels for 2–3 weeks, steep in water, dilute 1:20 for root drench; avoid raw peels to prevent pest infestations
Pruning
  • Trim leggy stems in spring to encourage bushier growth
  • Leave spent flower spurs intact, as they may reflower in subsequent seasons
  • Remove dead or yellowing leaves to maintain plant health and appearance
⚠️

Toxicity

Warning: this plant may be toxic.

Pets & Humans

Pets: ASPCA confirmed non-toxic to cats

Humans: No known toxic effects for humans

📖

Garden Uses & Culture

Culture: Symbolizes devotion and friendship in tropical gardening circles

Usage: Ornamental indoor hanging plant; cut flower arrangements (short-lived blooms)