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Nymphaea tetragona
Nymphaea tetragona is a small water lily that grows primarily in temperate and boreal regions of the Northern Hemisphere. The following is information regarding the growth characteristics, propagation methods, cultivation methods, garden uses, major pests, and control methods of Nymphaea tetragona.

Growth Characteristics
- Growing Environment: Nymphaea tetragona thrives in sunny ponds or along water's edge and prefers environments with clean, slow-flowing water. The optimal water temperature is approximately 20–30 degrees Celsius.
- Leaves and Flowers: This plant has small, round leaves, and its flowers are small and delicate, mainly white or light pink.
- Flowering Season: It generally blooms during the summer, exhibiting the characteristic of opening during the day and closing at night.

Propagation Methods
- Seed Propagation: In its natural state, it propagates via seeds. Collected seeds are planted in water with an appropriate temperature to induce germination.
- Root Division Propagation: This method involves dividing and planting the water lily's rhizomes. Carefully divide the existing roots and replant them in the spring or autumn.

Cultivation Method
- Planting: When planting, prepare soil suitable for the water lily to take root, and after planting in a pot, immerse it in water. A water depth of 30 to 60 cm is generally appropriate.
- Care: Change the water regularly and use aquatic fertilizer to provide nutrients. Also, keep the leaves and flowers clean to prevent pests and diseases.

Uses in the Garden
- Decorative Effect: Water Lily Tetragona is a small and beautiful flower suitable for decorating ponds or aquariums. When arranged harmoniously with other aquatic plants, it can add vibrancy and beauty to the garden.

Major Pests and Diseases & Control Methods
- Pests and Diseases: Water Lily Tetragona can be attacked by pests such as aphids and scale insects, and may also be susceptible to water mold or fungal diseases.
- Control Methods:
- For pest control, you can spray with soapy water or use eco-friendly pesticides. - To control fungal diseases, adjust the spacing between plants to ensure good ventilation and use antimicrobial agents if necessary.

Although the Tetragona water lily grows naturally without special care, you can enjoy healthier and more beautiful flowers by maintaining a proper environment and care.
Plant Family	Training and
Height	5~10cm
Spread	30~60cm
Colors	white
Bloom Period	June to August
Water Needs	well
Exposure	Sunny
Freezing Resistance	-10°C
Suyeon 'Almost Black'
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