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water frog's-eye Karolinia
Azolla caroliniana
Azolla caroliniana is a small aquatic fern that grows floating on the water surface. The following is information regarding this plant's growth characteristics, propagation methods, cultivation methods, garden uses, and major pests and diseases and control methods. Growth Characteristics - Environmental Requirements: Azolla thrives in warm, sunny environments and survives underwater. The optimal growth temperature is 20–30°C. - Water Quality Requirements: It grows well in clean water as well as nitrogen-rich water and possesses the ability to fix nitrogen in the water. - Growth Rate: Due to its rapid growth rate, it can cover a large area of water within a short period. Propagation Methods - Vegetative Propagation: It primarily reproduces vegetatively, dividing into small pieces to grow into new individuals. - Spores: It can occasionally reproduce via spores. Cultivation Methods - Azolla can be effectively cultivated artificially in various artificial ponds and hydroponic systems. - To maintain the plant's growth, it is necessary to prevent excessive exposure to sunlight by providing a continuous water supply and partial shade. Uses in the Garden - Ornamental: It has decorative value due to its beautiful green color that covers the water surface. - Ecological Value: It is environmentally beneficial due to its water purification and nitrogen fixation effects. Important Pests and Control Methods - Diseases: It is generally resistant to diseases, but diseases may occur in water with poor quality or contaminated water. - Pests: Although pest infestations are rare, bryozoans or other pests may occur. - Control Methods: Periodic water replacement and water quality monitoring are required, and eco-friendly insecticides can be used if pests occur. Based on these characteristics, water duckweed can be cultivated as an effective aquatic plant under suitable environmental conditions.
Plant Type
Plant Family
snail family
Height
2~5cm
Spread
Colors
green
Bloom Period
April to August
Water Needs
well
Exposure
Sunny
Freezing Resistance
-10°C
wrinkled water frog's-eye
Azolla filiculoides
birch tree
Betula schmidtii