Pinnate mosquito fern (Azolla pinnata) is a water plant that spreads rapidly on still water. In countries such as New Zealand, it is classed as invasive because it suppresses the growth of native species. But it is also a potentially useful species in removing environmental pollutants. The living and dead tissue of the plant can help to absorb dyes, and harmful chemicals from wastewater.
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Annual, Perennial
Lifespan
2 cm
Spread
Evergreen
Leaf type
20 - 38 ℃
Ideal Temperature
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Distribution
Care Guide
FAQs
Images of Pinnate mosquito fern
Distribution of Pinnate mosquito fern
Distribution Map
Pinnate mosquito fern is native to an expansive region that includes continents such as Africa and Asia, covering tropical and subtropical areas. Pinnate mosquito fern is also recognized in parts of Australia and the Pacific islands. While pinnate mosquito fern is sometimes thought to be established in certain areas outside its original habitat, such as North America and New Zealand, its presence may have an impact on local ecosystems, albeit the degree of this impact is typically nuanced and varies by region.
Native
Cultivated
Invasive
Introduced
No species reported
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Habitat
Ponds and backwaters of rivers
Hemisphere Trend Curve
Northern
Sorthern
Care Guide for Pinnate mosquito fern
Every week
Water
Full sun
Sunlight
20 - 38 ℃
Ideal Temperature
Water:
Thriving in humid environments, pinnate mosquito fern prefers high humidity and regular watering, needing moisture weekly for optimal growth. Typically grown as an aquatic plant in outdoor ponds or water gardens, it aids in water purification by absorbing nutrients and reducing algae growth.
Fertilize:
For healthy growth, pinnate mosquito fern requires balanced nutrition, benefiting from high-nitrogen fertilizers during peak growth. Apply diluted fertilizer biweekly, reducing to monthly in cooler seasons. Use high nitrogen monthly in the growing season, adjusting amounts for size. Protect waterways from runoff for optimal health.
Pruning:
Pinnate mosquito fern is a floating aquatic fern with feather-like fronds. Pruning should occur in early to late spring, trimming overgrown or damaged fronds to improve growth and water circulation while reducing fungal disease risk. Use clean, sharp tools to minimize stress and damage.
Propagation:
A delicate aquatic fern, pinnate mosquito fern thrives in water gardens and ponds, enhancing ecosystems with its nitrogen-fixing abilities. It propagates through spores, which need careful handling when distributed on the water surface. Stable warmth and light are essential for successful germination and growth.
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