Slender naiad (Najas flexilis)

Slender naiad

Also known as: Slender water-nymph

It is native to northern and Central Europe from Norway to Ireland to Switzerland, and from there across Russia and Siberia. It is also considered native throughout most of Canada, and the northern United States in disjunct populations in southern California, Arizona, Missouri, South Carolina and Utah. Its common names include slender naiad and nodding waternymph.

Scientific classification

Species

Slender naiad (Najas flexilis)

Water plantains and allies

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Annual

Lifespan

Evergreen

Leaf type

Spring, Summer, Fall

Growth Season

Rapid

Growth Rate

Images of Slender naiad

Attributes of Slender naiad

Growth Rate

With 'slender naiad' displaying a rapid growth rate during Spring, Summer, and Fall, it experiences an intense surge in development, swiftly gaining height and producing a multitude of leaves which enables swift colonization. Seasonality dictates an obvious accelerated growth during these periods, marked by frequent changes in foliage density and height.

Distribution of Slender naiad

Distribution Map

Slender naiad is a plant primarily native to temperate and boreal regions of the Northern Hemisphere. Its native distribution encapsulates northern Europe and parts of western Asia. In terms of introduced range, slender naiad has expanded to cover parts of eastern-central North America. The plant has successfully naturalized in these areas, demonstrating a notable adaptability to diverse freshwater ecosystems.

Native

Cultivated

Invasive

Introduced

No species reported

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Care Guide for Slender naiad

Twice per week

Water

Full sun

Sunlight

Water: Slender naiad thrives in freshwater habitats, preferring consistent moisture and tolerating brief dryness. Water twice weekly for optimal health. Best grown outdoors, slender naiad forms dense colonies in ponds or slow streams and is essential for oxygenating water, supporting healthy aquatic ecosystems.

Fertilize: For slender naiad, apply balanced nutrition fertilizers and switch to high-nitrogen during active growth. Fertilize bi-weekly to monthly, adjusting for seasonal needs. Use liquid formulations for precise dosing and avoid root disturbance, supporting a vibrant and healthy plant while balancing aquatic ecosystem requirements.

Pruning: Slender naiad thrives with careful pruning from early to late spring during its active growth phase. Regular trimming prevents overgrowth, enhances water circulation, and removes damaged parts for vigorous development. Pruning maintains a balanced ecosystem in controlled water gardens.

Propagation: Slender naiad propagates effectively through direct sowing in its aquatic habitat, as it is sensitive to transplanting. Optimal growth occurs in organic-rich substrates. Dense sowing should be avoided for light and nutrient access, while regular water monitoring and gentle thinning are essential for success.

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