Castellano cactus

Gymnocalycium castellanosii

Growth Characteristics

Gymnocalycium castellanosii is a cactus native to Argentina that has a spherical appearance and typically grows up to about 10 cm in diameter. Its surface ranges from green to dark brown, and it is characterized by hook-shaped spines. It usually blooms with white or light pink flowers from spring through summer.

Propagation Methods

This cactus can be propagated by seeds. It is best to sow seeds in early spring. Lightly scatter them over the surface of free-draining soil and cover them thinly. If humidity and temperature are maintained consistently, germination will begin within a few weeks.

Cultivation Methods
 - Sunlight: It prefers strong sunlight, but it is best to avoid direct sunlight during the midday hours of summer.
 - Watering: During spring and summer, water only after the soil has completely dried out, and watering should be strictly limited during winter.
 - Soil: Use specialized cactus soil mixed with sand or coarse gravel for excellent drainage. 4. Temperature: Ensure nighttime temperatures do not drop below 10°C, and take care to prevent freezing even during winter.

Uses in the GardenCactus Castellanosi can be used as a ground cover in desert gardens or dry environments alongside other cacti and succulents. It can also be grown indoors in pots and is suitable for interior decoration.

Important Pests and Control Methods - Scale Insects: Scale insects may occur. Regular inspection is necessary to control them, and if detected early, wipe them off with a cotton swab soaked in alcohol.
 - Root Rot: Root rot can occur if the plant is overwatered, so ensure good drainage and regulate watering.
 - Mold: Prevent mold growth by maintaining a well-ventilated environment. If mold occurs, treat it using a specialized fungicide.

Proper care and providing the right environment will help Cactus Castellanosi grow healthily.

Plant Family	Cactus and
Height	15cm
Spread	10cm
Colors	white, pink
Bloom Period	March to August
Water Needs	Bad
Exposure	semi-shaded area
Freezing Resistance	-10°C

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Gymnocalycium erinaceum

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Gymnocalycium bruchii