Seeds per gram: 3
Average germination rate: 85%
Package sizes
- 20 seeds — 17 plants — covers about 51–85 sq. ft. of vertical trellis
- 100 seeds — 85 plants — covers about 255–425 sq. ft. of vertical trellis
Plant growth and coverage
- Vigorous twining vine with crimson foliage and purple-pink blooms
- Height: up to 8 ft (2.4 m) on support
- Spread: 24–36 in (60–90 cm) at the base
- Spacing: 8–12 in (20–30 cm) along trellises; full sun and well-drained soil
- Each plant typically blankets 3–5 sq. ft. of vertical surface when trained
Choosing a packet size
- A 20-seed packet is perfect for home gardeners with a small trellis, fence panel, or a few obelisks to cover.
- The 100-seed packet suits large arbors, long fence runs, and mass plantings—great for market growers and landscapers seeking dramatic, season-long coverage.