Description
Alocasia macrorrhizos 'Black Stem', commonly known as Giant Taro 'Black Stem', is a striking perennial native to Southeast Asia, New Guinea, and northeastern Australia. This cultivar is distinguished by its prominent dark, nearly black petioles that contrast beautifully with its large, glossy, heart-shaped green leaves. The plant typically reaches heights and widths of 1 to 1.5 meters, making it a bold statement in any garden or indoor space. In Perth's climate, 'Black Stem' thrives in bright, indirect sunlight and benefits from protection against strong winds. It's well-suited for indoor cultivation, adding a tropical touch to interior settings.?
For optimal growth, plant 'Black Stem' in free-draining soil rich in organic matter. Maintain consistent moisture levels, ensuring the soil remains moist but not waterlogged, as the plant does not tolerate drought conditions. Regular watering is essential, especially during the warmer months. Applying a balanced liquid fertiliser every 4 to 6 weeks during the growing season will support vigorous growth. In Perth, 'Black Stem' may enter dormancy during Makuru (Winter), with foliage dying back; reduce watering during this period to prevent root rot. As temperatures rise in Djilba (Early Spring), new growth typically emerges. Regularly remove any yellowing or damaged leaves to maintain the plant's appearance and health.
| Botanical Name | Alocasia macrorrhizos |
| Common Name | Giant Taro |
| Cultivar | Black Stem |
|
Classification |
Alocasia |
| PBR Name | |
| Origin | Southeast Asia, New Guinea, Northeastern Australia |
| Foliage | Deciduous during Makuru (Winter) |
| Height | 1 - 1.5 M |
| Width | 1 - 1.5 M |
| Light | Bright, indirect sunlight |
| Soil | Free-draining, rich in organic matter |
| Water Requirement | Keep soil consistently moist; do not let it dry out |
| Lifespan | Perennial |
| Flower Colour | Cream/yellow |
| Flower Time | |
| Toxicity | Toxic to humans and pets; ingestion can cause irritation of the mouth and throat, nausea, and vomiting; contact with sap may cause skin irritation |
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