Canna Lily
📖 About this plant
Canna Lilies are among the most bold, tropical, and dramatic garden plants available, producing massive banana-like leaves and large, vibrant flowers over an exceptionally long season from mid-summer until frost. The foliage alone is stunning — varieties with bronze, burgundy, or striped leaves create tropical effects even without flowers. The asymmetric, iris-like flowers come in brilliant shades of red, orange, yellow, pink, and cream, and are produced in continuous succession throughout the growing season. Cannas thrive in heat and moisture, making them perfect for waterside plantings, containers, and tropical-themed gardens. They’re among the most versatile summer plants — equally effective in formal borders, cottage gardens, water gardens, and large containers. Their towering height and bold foliage provide dramatic vertical accents, while dwarf varieties are excellent for mass bedding and container displays.
🧑🌾 Care requirements
Full sun
2-3 times weekly
Moderate (50-70%)
15-35°C
Rich, moisture-retentive, well-draining soil with plenty of organic matter; pH 6.0-6.5; they love water-retentive soil
Heavy feeder — apply balanced or bloom-boosting fertilizer every 4-6 weeks during the growing season
📋 Plant facts
- 🌍 Origin
- Tropical and subtropical Americas — from southern United States through Central America to northern South America and the Caribbean
- 📏 Max height
- 60-240 cm (2-8 ft) depending on variety — from dwarf bedding types to giant background plants
- 📐 Spread
- 30-90 cm (1-3 ft)
- 🕰️ Bloom time
- Mid-Summer to First Frost (July-October) — blooms continuously
- 🎨 Bloom color
- Red, orange, yellow, pink, cream, bicolors, and near-white; large, asymmetric flowers in clusters
- 🍃 Foliage color
- Large, broad, tropical-looking leaves — green, bronze-purple, dark burgundy, striped, or variegated depending on variety
- ⏳ Lifespan
- Tender perennial rhizome (stored indoors in cold winters; perennial in frost-free zones)
- 📈 Growth rate
- Very Fast — especially in warm, wet conditions
- ☠️ Toxicity
- Not considered toxic to humans or pets — rhizomes are edible (Canna edulis is grown for edible starch); foliage is non-toxic
- 🌱 Propagation
- Rhizome division in spring (each division must have at least one 'eye' or growing point); can also be grown from seed (scarify and soak before sowing)
🛡️ Health & Safety
Not considered toxic to humans or pets — rhizomes are edible (Canna edulis is grown for edible starch); foliage is non-toxic
Common issues
- Canna leaf roller caterpillars rolling and skeletonizing leaves, Japanese beetle damage, snail and slug damage on young growth, rhizome rot in poorly draining cold soil, spider mites in hot dry conditions, frost damage to foliage (immediate; even light frost kills above-ground growth)
💡 Care tips
- Plant rhizomes 5-10 cm (2-4 in) deep after all frost danger has passed. Cannas are heavy feeders and drinkers — water generously and fertilize regularly for the best performance. Deadhead spent flowers to encourage continuous blooming. In cold zones, dig rhizomes after first frost kills foliage — dry briefly, then store in slightly moist peat or vermiculite at 5-10°C (40-50°F). The burgundy and bronze-leaved varieties are often grown primarily for their stunning foliage. Dwarf varieties (60-90 cm) are excellent for containers. Cannas pair beautifully with other tropical-looking plants like bananas, elephant ears, and ornamental grasses.
