Rattlesnake calathea features long and narrow, light-green leaves with edges in dark green marks. Calathea rattlesnake plants has beautifully marked leaves with wavy edges and green spots. Even the undersides of the Calathea rattlesnake plants are a magnificent reddish-purple shade. The Rattlesnake Plant is a striking specimen with head-turning foliage. As a tropical foliage houseplant, Calathea lancifolia grows between 24” and 30” (60 – 75 cm) tall and leaves measure up to 18” (45 cm) long.
Rattlesnake calathea is a flowering perennial that produces small yellow flowers. In its native environment, this Calathea species blooms in late spring. As a houseplant, the rattlesnake plant rarely blooms indoors.
To care for Rattlesnake calathea, grow the rattlesnake plant in bright, indirect sunlight. This calathea plant performs best planted in a porous, well-draining potting mix. Water frequently to keep the soil moist but without becoming waterlogged. Ideal temperatures are between 65°F and 75°F (18°C – 24°C), and humidity should be medium to high.