Through the years I've tried just about everyone for bulbs but A.D.R. is tops. It's a family run business and the service levels and expertise are as good as the product they sell. My clients rave about the results we get with A.D.R. and that makes me happy.

Paul Keyes , Paul Keyes Associates

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Canna Tall 'Black Knight' (Ships in Spring)

Canna

Canna 'Black Knight' is known for its deep burgundy foliage and bold red flowers. Growing to about 4 to 6 feet tall, it thrives in full sun and prefers moist, well-drained soil. Blooming from mid-summer until frost, it adds dramatic color and texture to gardens, borders, and containers. Hardy in zones 7-11, it requires lifting and storing in colder climates before winter. This variety is particularly effective in mass plantings, poolside landscapes, and as a focal point in tropical-themed gardens.

Description	Price
Bulk Box of 25 Bulbs, #1 Size	$45.00
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10 Retail Packages of 2 Bulbs, #1 Size	$54.00
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Growing and Maintenance Tips for Canna Tall 'Black Knight' (Ships in Spring)

Planting: In spring, plant rhizomes horizontally 3 to 4 inches deep after the last frost, when soil has warmed to at least 60°F. Space 12 to 18 inches apart.
Location: Choose a spot in full sun for best flowering. In hot climates, light afternoon shade can help prevent leaf scorch.
Soil: Rich, well-drained, moisture-retentive soil with a slightly acidic to neutral pH (6.0–7.0) is ideal.
Watering: Keep soil consistently moist, especially during hot weather. Deep weekly watering is recommended.
Temperature: Thrives in 70–90°F. Hardy in USDA zones 8–10; in colder zones, lift rhizomes in fall and store in a cool, dry place.
Fertilization: Feed monthly with a balanced fertilizer or apply slow-release fertilizer in spring and midsummer.
Pruning: Deadheading is optional but helps tidy the plant. Remove spent flower stalks without cutting off developing buds below.
Pest & Disease: Watch for Japanese beetles, caterpillars, and fungal leaf spots. Ensure good air circulation and avoid overhead watering.
Propagation: Divide rhizomes in spring before planting.