Alternanthera Cardinalis

Scientific Name: Alternanthera cardinalis

Common Name: Cardinal Plant, Scarlet Temple, Red Cardinal Alternanthera

Origin: South America

• Found naturally along riverbanks and wetlands

Height: 20 – 50 cm (8 – 20 inches)

pH Range: 6.0 – 7.5

Care Level: Moderate to Difficult

• Requires stable water parameters and attentive maintenance

• Prefers nutrient-rich substrate

Light Requirement: Medium to High

• High lighting brings out its deep red or burgundy coloration

• Under low light, the plant may become leggy and lose vibrancy

CO₂ Requirement: Recommended

• CO₂ injection greatly enhances growth and coloration

• Not mandatory, but highly beneficial for optimal health

Propagation: Stem cuttings

• Trim healthy stems and replant them directly in the substrate

• New roots will develop from the nodes

Growth Rate: Moderate

• Can grow faster under high light and CO₂-enriched conditions