Long-tailed swallow's honey

Thesium refractum

Thesium refractum is a perennial herbaceous plant belonging to the Apiaceae family. It is characterized by the following growth characteristics, propagation methods, cultivation methods, garden uses, and major pests and diseases, as well as control methods.

Growth Characteristics
- Ecology: It primarily grows in temperate regions and prefers sunny locations.
- Soil: It thrives in well-drained, fertile soil and can adapt to acidic or neutral soils.
- Height: It typically grows to about 30–60 cm.
- Leaves: It has narrow, long leaves that are green in color.
- Flowers: Small white flowers bloom in the summer and are arranged in umbels.

Propagation Methods
- Seed Propagation: Sow seeds in late spring or early summer. It is recommended to lightly soak the seeds in water before sowing to increase germination rates.
- Division Propagation: It can be propagated by dividing the root portion in spring or autumn. Cultivation Method
- Location: Choose a location with plenty of sunlight, but it is best to avoid direct sunlight during the summer.
- Watering: Sufficient moisture is required, but avoid excessive watering. It is important to cultivate in well-draining soil.
- Fertilizer: Provide a balanced fertilizer appropriately during the growing season.

Uses in the Garden
- Landscape Creation: Primarily used in wildflower gardens or naturalistic gardens. It can blend harmoniously with surrounding plants.
- Ground Cover: It is excellent for use as a ground cover plant, taking advantage of its low-growing characteristics.

Important Pests and Control Methods
- Diseases: Root rot caused by excessive moisture may occur. Pay attention to drainage and avoid overwatering.
- Pests: Generally, there are no serious pest issues, but if aphids or other pests are observed, control them using appropriate organic insecticides.
- Preventive Care: Regular observation and care are necessary to maintain a healthy plant, and it is important to respond immediately if pests or diseases occur. Lefractorium longifolium is a relatively easy-to-care-for plant and a good choice for adding a natural touch to your garden.

Plant Type
Plant Family	Sandalwood
Height	10∼30cm
Spread
Colors	green
Bloom Period	July–August
Water Needs	commonly
Exposure	Sunny
Freezing Resistance	-10°C

Swallow's honey
Thesium chinense

The King and
Thladiantha dubia