Emm's Plant House

Cleistocactus strausii Ø12cm

£12.00 GBP

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Pot Size Ø12cm

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Cleistocactus strausii, commonly known as the Silver Torch Cactus, is a striking and unique cactus native to the Andes Mountains of South America. This cactus is known for its tall, columnar shape and dense white or silver spines, which give it a torch-like appearance. During the summer, it produces vibrant red or orange tubular flowers that bloom from the tips of the stems, adding a burst of color to its otherwise silvery body. Cleistocactus strausii is a relatively low-maintenance cactus, making it a popular choice for succulent enthusiasts and cactus collectors.

Full Botanical Name: Cleistocactus strausii
Common Names: Silver Torch Cactus, Woolly Torch Cactus
Country and/or Region of Origin: Native to the Andes Mountains of South America, primarily found in Bolivia and northern Argentina
Growing Conditions in Native Habitat: Grows in rocky, well-drained soils at high altitudes in arid, desert-like conditions with full sunlight and minimal rainfall

Care Guide

Care Guide:

Light: Prefers bright, direct sunlight. The Silver Torch Cactus thrives in full sun but can tolerate some light shade, especially in extremely hot climates. However, too much shade can reduce flowering and slow growth.

Ideal Room: Suitable for sunny windowsills, patios, or outdoor cactus gardens. It can also be grown indoors in a bright location with sufficient natural light or under grow lights if sunlight is limited.

Feeding: Fertilize sparingly, once every 4-6 weeks during the growing season (spring to summer) with a diluted cactus or succulent fertilizer to encourage healthy growth and vibrant flowers.

Humidity: Tolerates dry air and is ideal for homes with low humidity. It is a perfect plant for desert-like environments.

Ideal Temperature: Best kept between 70°F and 85°F (21°C to 29°C). It is cold-hardy to around 20°F (-6°C) but should be protected from freezing temperatures to prevent damage.

Watering: Water sparingly, allowing the soil to dry out completely between waterings. Overwatering can lead to root rot, so ensure that the plant has good drainage and never let it sit in standing water.

Pet/Child Safe: Toxic to pets and children if ingested, making it important to keep this plant out of reach of animals and young children. The plant’s spines are also sharp, so care should be taken when handling it.

Soil Type: Use a well-draining cactus or succulent mix. The plant prefers slightly acidic to neutral soil that drains quickly to avoid excess moisture around the roots.

Propagation: Propagate by stem cuttings. Allow the cuttings to callus over for a few days before planting them in dry, well-draining soil to encourage rooting.

Eventual Height and Spread: Typically grows up to 3-4 feet (90-120 cm) tall, with a spread of about 6-8 inches (15-20 cm), making it a medium-sized cactus perfect for gardens or large containers.

Growth Rate: Slow-growing. It may take a few years to reach full size but blooms annually with vibrant flowers once mature.

Pests and Treatment: Generally resistant to pests, but watch for mealybugs or aphids. Treat any infestations with insecticidal soap or neem oil to prevent damage.

Repotting: Repot every 2-3 years or when the plant becomes root-bound. Choose a pot with good drainage, and ensure the new pot is slightly larger to allow for healthy root development.

Pruning: Prune dead or damaged stems to maintain the plant’s appearance. Pruning is typically minimal, but regular care will keep it looking tidy.

Air Purification: While not specifically known for air-purifying qualities, Cleistocactus strausii adds a dramatic, desert-inspired aesthetic to any home or garden, creating a unique focal point in your space.

Folklore: Cacti, including Cleistocactus species, are often seen as symbols of endurance, resilience, and protection. The Silver Torch Cactus is said to symbolize strength and perseverance, thriving in harsh desert conditions where other plants might not survive.

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