Plant Profile Rotala Bonsai is a rare and sought-after dwarf stem plant native to the tropical regions of Asia. Characterized by its thick, rigid, perfectly upright central stems lined with rounded, fleshy leaves, this species grows at a much slower and more controlled pace than traditional Rotala varieties. Under moderate conditions, it maintains a clean, architectural lime-green appearance, but when exposed to high-intensity lighting, pressurized CO2, and nutrient dosing, its crown tips blush with rich orange, salmon, and deep reddish hues. *Form Notice: Photos display this plant in both its emersed (above-water) and submerged forms. Depending on nursery availability and seasonality, you may receive this plant in either form. Learn more about what to expect by reading our guide on Emersed vs. Submerged-Grown Aquatic Plants. Key Features & Benefits Thick, rigid columnar stems with compact rounded leaves create a clean, architectural tree-like structure. Displays vibrant reddish-orange crown highlights under high-intensity lighting and high-tech parameters. Care & Planting Instructions Remove lead weight and remove cotton wrap (or foam) surrounding the base, then strip the lower inch of foliage so bare stems anchor cleanly into soil without rotting. *Rotala leaves are fragile, so handle stems with care during preparation. Use fine-tip pinsettes to plant small stem clusters 1 inch apart into aquarium soil. Provide medium-to-high lighting and pressurized CO2 injection; consistent fertilization with a specialized liquid macro and micro formula yields robust stem growth and vibrant reddish-orange tips. See our guide to growing red aquarium plants. Maintain stable water parameters and avoid sudden parameter swings to prevent stem melting or rotting. Trim main stem tops with sharp straight scissors once they reach the desired height, and replant trimmings directly into substrate to propagate and expand coverage. Read our trimming & propagation guide for details. Quick Facts Listed information should be treated as general guidelines only. Team Buce Plant encourages you to do thorough research to ensure healthy growth! Attribute Specification Scientific Name Rotala indica / Ammannia 'Bonsai' Common Name(s) Rotala Bonsai, Ammania Bonsai, Rotala Indica Bonsai Family Lythraceae Plant Type / Taxonomy Dwarf Stem Plant Care Difficulty Moderate to Advanced Light Requirement Medium to High CO2 Requirement Required (Essential for healthy growth and reddish tips) Placement / Usage Midground Accent / Dutch Streets / Nano Tanks Height / Size 4–8”+ Growth Rate Slow to Moderate Water Parameters pH 6.5–7.5 Propagation Method Cuttings (Cut stem tops or lateral shoots and replant) Origin Asia Frequently Asked Questions 1. Why are the lower leaves falling off my stem plants? Lower leaf loss (leggy stems) usually occurs when lighting cannot reach the bottom of the plant due to overcrowding or shading from larger plants. Spacing individual stems slightly apart during initial planting and maintaining strong light penetration will keep lower leaves healthy. 2. Is Rotala Bonsai the same as regular Rotala Indica? No, true Rotala Bonsai (often classified as Ammannia 'Bonsai') has a much slower growth rate, thicker rigid stems, and rounder leaves compared to standard Rotala rotundifolia (which is frequently mislabeled in the hobby as Rotala Indica). 3. How do I transition Rotala Bonsai from emersed to submerged growth? When transitioning from emersed to submerged growth, plant bare stems securely into rich substrate under high lighting and keep water parameters stable. As new growth adapts, the plant will shed its rounded land leaves and sprout narrow, delicate orange-pink underwater foliage. Once new shoots develop, trim away old lower growth to encourage dense branching.
