Gaegwakhyang

Teucrium japonicum

I will explain the growth characteristics, propagation methods, cultivation methods, garden uses, and major pests and diseases and control methods of Teucrium japonicum.

Growth Characteristics

Teucrium japonicum is a perennial herbaceous plant belonging to the Lamiaceae family. It is mainly distributed in East Asia and grows to a height of approximately 30 to 60 cm. While it prefers sunlight, it also grows well in partial shade. It prefers well-drained soil, and maintaining adequate moisture is important.

Propagation Methods

Teucrium japonicum is primarily propagated through seeds and cuttings.
- Seed Propagation: It can be propagated by sowing seeds indoors in the spring or scattering them directly outdoors in late autumn. Germination rates can be increased by wrapping seeds in wet sand or paper and storing them in the refrigerator before sowing.
- Cuttings: Healthy stems can be cut during the summer for cuttings, and the plant has the property of rooting easily. Cultivation Methods

It is best to plant in a sunny location and grow it in well-drained soil. Maintaining proper soil moisture and applying fertilizer periodically promotes healthy growth. In winter, it is recommended to mulch to prevent the roots from freezing.

Garden Uses

Yaponicum japonica is suitable for planting along the edges of flowerbeds or as a border plant. Additionally, due to its high aesthetic value even when in bloom, it can be utilized for garden or indoor decoration.

Major Pests and Diseases & Control Methods

The most common pests and diseases are aphids and powdery mildew.
- Aphids: They can be removed by periodically washing them with water or using soapy water.
- Powdery Mildew: Remove affected leaves, ensure good ventilation, and control the disease using appropriate pesticides when it occurs.

It is important to prevent pests and diseases through regular observation and proper care.

Plant Type
Plant Family	Lamiaceae
Height	30~70cm
Spread
Colors	pink
Bloom Period	July~August
Water Needs	commonly
Exposure	semi-shaded area
Freezing Resistance	-15°C

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