Cup and Saucer Vine
Cobaea scandens
📖 About this plant
A fast-growing annual vine famous for its extraordinary bell-shaped flowers that resemble miniature cups sitting in saucer-like calyces. Blooms open greenish-white and mature to deep purple, creating a striking two-tone effect. The tendriled vine quickly covers trellises and fences, producing flowers from midsummer until frost. One of the most dramatic annual climbers available.
🧑🌾 Care requirements
Full sun (6-8 hrs)
Every 2-3 days
Moderate (40-60%)
18-30°C
Moderately fertile, well-draining soil; tolerates poor soils; pH 6.0-7.5
Balanced liquid fertilizer (10-10-10) every 2-3 weeks during the growing season
📋 Plant facts
- 🌍 Origin
- Mexico, Central America
- 📏 Max height
- 300-600 cm
- 📐 Spread
- 100-300 cm
- 🕰️ Bloom time
- Summer - Fall
- 🎨 Bloom color
- Purple, Blue
- 🍃 Foliage color
- Green
- ⏳ Lifespan
- Annual
- 📈 Growth rate
- Fast
- ☠️ Toxicity
- Non-toxic to pets and humans
- 🌱 Propagation
- Seed sowing indoors 6-8 weeks before last frost; soak seeds overnight before planting
🛡️ Health & Safety
Non-toxic to pets and humans
Common issues
- Late to start blooming — needs warm weather, Can strangle nearby plants if unchecked, Slugs and snails on young seedlings
💡 Care tips
- Unique bell-shaped flowers in purple and green,Very fast grower that can cover a large trellis in one season,Sow seeds directly outdoors after last frost,Attracts hummingbirds and butterflies to the garden