Tonganajasmal

Najas orientalis

Growth Characteristics

Najas orientalis is an annual aquatic plant that grows primarily in shallow water. It is sensitive to water temperature and light intensity, and tends to thrive better in areas with moderate water flow.

Propagation Methods

Najas orientalis is mainly propagated by seeds. Mature seeds are collected in the autumn and sown the following spring. It can also be propagated through new shoots growing from the roots.

Cultivation Methods
 - Water Temperature and Light Intensity: Najas orientalis grows well in warm water and requires sufficient sunlight.
 - Water Quality: It prefers clean water with a neutral to slightly acidic pH.
 - Sowing: Sow seeds on the bottom of shallow water in the spring.
 - Water Depth: It grows well in shallow water of 10 to 30 cm.

Uses in Gardens

Najas orientalis is widely used as a decorative plant in aquariums and garden ponds. It can be planted alongside other aquatic plants to create a natural waterside landscape.

Important Pests and Control Methods
- Algal Blooms: Algal blooms may occur if excessive nutrients are present in the water. To prevent this, manage nutrients appropriately.
- Snails: Snails that feed on the leaves of Tonganajas can cause problems. Manage snails by removing them manually or by introducing predators using natural methods.
- Fungal Diseases: Fungal diseases may occur due to excessive moisture. Prevent this by properly controlling water temperature and humidity.

This information is for general reference only and may vary depending on specific conditions.

Plant Family	Najas and
Height	20~40cm
Colors	yellow
Bloom Period	July to October
Water Needs	well
Exposure	Sunny
Freezing Resistance	-10°C

Silver plum blossom
Myrtus communis

Large cogwheel Najas
Najas oguraensis