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The star cactus originally has these characteristics

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The star cactus, also known as the sea urchin cactus or star crown, is the representative species of the genus Astrophytum. It originates from the United States and Mexico. It starts out spherical, then becomes flattened globe-shaped and even disc-shaped. With its dignified posture, deep green skin inlaid with white dots, and elegant tufts of hair, this exquisite balance and solemnity make it a plant you never tire of looking at, giving a sense of stability.

Growth habits of the star cactus

Native to northern Mexico and the southern United States. It prefers a warm, dry environment with plenty of sunlight. It is relatively cold-tolerant and can withstand brief frost.

Optimal temperature: 18-25°C at room temperature

Watering: water once every 2 weeks during the growing season

Light: full sun

Propagation: sowing, grafting

Pests and diseases: gray mold, red spider mites

Combination suggestions: Lithops, Sedum adolphi

Planting and care tips for the star cactus

Care tips for the star cactus

Potting soil: Its root system is relatively shallow, so when potting, the body should not be planted too deep, and the bottom of the pot should be lined with plenty of broken tiles for drainage. Use a mix of leaf mold and coarse sand, with a small amount of bone meal and dried cow manure added.

Fertilizing: Keep the potting soil moist during the growing season, ensure plenty of sunlight, and fertilize once a month or use a 15-15-30 special fertilizer for potted flowers.

Temperature: In winter, the body enters dormancy, so the temperature should not be too high; 10°C is suitable. Keep the potting soil dry, and repot mature plants once every 3-4 years.

Propagation methods for the star cactus

Sowing: Sow mature seeds by the end of April; the optimal germination temperature is 22-25°C, and they germinate 3-5 days after sowing.

Grafting: Carry out in May-June, commonly using Hylocereus undatus or Echinopsis multiplex as rootstock, with seedlings or offsets as scions; after grafting, they survive in 10-12 days and can bloom the following year.

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