Cyrtosperma Species
Cyrtospermajohnstonii

Synonym:Alocasia johnstonii

Category
Tropicals and Tender Perennials

Water Requirements
Requires consistently moist soil; do not let dry out between waterings
Very high moisture needs; suitable for bogs and water gardens

Sun Exposure
Light Shade

Foliage
Grown for foliage
Good Fall Color

Foliage Color

Height
4-6 ft. (1.2-1.8 m)

Spacing

Hardiness
USDA Zone 9b: to -3.8 °C (25 °F)
USDA Zone 10a: to -1.1 °C (30 °F)
USDA Zone 10b: to 1.7 °C (35 °F)
USDA Zone 11: above 4.5 °C (40 °F)

Where to Grow
Can be grown as an annual

Danger
Parts of plant are poisonous if ingested

Bloom Color
Dark Purple/Black

Bloom Characteristics

Bloom Size

Bloom Time
N/A

Other details

Soil pH requirements
5.6 to 6.0 (acidic)
6.1 to 6.5 (mildly acidic)
6.6 to 7.5 (neutral)

Patent Information

Propagation Methods
By dividing rhizomes, tubers, corms or bulbs (including offsets)
From herbaceous stem cuttings
By serpentine layering

Seed Collecting