The Cultivation Method of Star Cactus
As a star variety in the cactus family, the Star Cactus has become a new favorite among succulent enthusiasts with its unique shape and strong adaptability. Although this vulnerable species is expensive, mastering scientific care methods can help it thrive at home. This article will comprehensively interpret the secrets of caring for Star Cactus, from temperature control to disease prevention.
Three Core Elements of Star Cactus Cultivation
Golden Ratio of Temperature and Light
Day-night temperature difference is the key to activating the growth of Star Cactus. It is recommended to maintain 22-28℃ during the day and cool down to about 15℃ at night. Ensure at least 6 hours of direct sunlight every day throughout the year, with no need for shading in summer and using supplementary lights in winter to maintain light intensity.
Building a Smart Watering System
Use the "soak pot method" to water once a month, and shorten it to every 20 days during the high-temperature summer period. The soil should contain 60% granular matrix, and using a red pottery pot can effectively prevent waterlogging and root rot. Keep the ventilation for 2 hours after watering to avoid water accumulation in the leaf center.
Precise Nutrient Supply Plan
The Cultivation Method of Star Cactus
Bury slow-release fertilizer granules when repotting in spring, and add phosphorus and potassium liquid fertilizer (diluted to 1:2000) every 60 days during the growing season. Stop fertilizing during the dormant period (November to February) to avoid fertilizer damage.
Advanced Care Techniques
Propagation and Repotting Tips
Sowing is best done in a spring environment of 18-25°C, with the soil cover not exceeding the diameter of the seeds. Seedlings can be grafted after 3 years to accelerate growth, with a repotting cycle of 5 years/time, retaining 1/3 of the original soil ball for root protection during the operation.
Disease and Pest Control System
(T-J) disease can be treated with a garlic extract (1:10) spray in the early stage, and alternating use of mancozeb and difenoconazole in severe cases. Regularly applying diatomaceous earth can physically prevent pests, and root mealybugs can be precisely treated with alcohol cotton swabs.