Spider rock rose

Sempervivum arachnoideum

Growth Characteristics

Sempervivum arachnoideum is a succulent that thrives even in dry soil environments. This plant is characterized by its small rosette form and fine, thread-like white hairs at the tips of its leaves. It generally grows in rock crevices or on slopes in alpine regions and thrives in environments with plenty of sunlight.

Propagation Methods

It is primarily propagated through offsets (runners or stolons). For side propagation, carefully separate the small offsets that form next to the rosette and transplant them. While propagation by seeds is possible, offset propagation is more common and easier.

Cultivation Methods
 - Sunlight: It is best to grow it in a sunny location ranging from partial shade to full sun.
 - Soil: It is important to use well-draining soil. Generally, soil specifically designed for succulents or soil mixed with sand is used.
 - Watering: Water carefully to avoid overwatering. It is best to water after the soil has completely dried out.
 - Temperature: It is resistant to cold and tolerates winter relatively well. However, in very cold regions, it is recommended to grow it indoors.

Uses in the GardenDue to its spreading nature, this plant is well-suited for rock gardens, dry hills, and sloping areas. Additionally, thanks to its small size and unique appearance, it is frequently used in miniature gardens and container gardening.

Important Pests and Control Methods
Sempervivum arachnoideum is a relatively pest-resistant plant, but it can be susceptible to root rot caused by overwatering, as well as damage from aphids and scale insects.
 - Root Rot: This can be prevented by avoiding overwatering and ensuring good drainage.
 - Aphids and Scale Insects: They can be controlled by washing them with water immediately upon discovery or by using insecticides periodically. Alternatively, they can be removed directly using a cotton swab soaked in natural insecticides or alcohol. You can grow Sempervivum arachnoideum healthily by applying these methods.

Plant Type
Plant Family	Cactus and
Height	20cm
Spread
Colors	pink
Bloom Period	July~August
Water Needs	Bad
Exposure	Sunny
Freezing Resistance	-20°C

Sempervivum Calcareum
Sempervivum calcareum

Sempervivum 'Western William Lorenz'
Sempervivum calcareum 'Sir William Lawrence'