Propagation Methods
Crassula Alstonii plants can be propagated through seeding, division, or cutting (decapitation).
The cutting method is the most common: the top is cut for propagation, and the remaining part will sprout new shoots.
Soil Requirements
The ideal soil mix includes peat, perlite, and coal cinder in a 1:1:1 ratio.
To improve aeration and isolate the plant from direct soil contact, add a layer of clean, coarse river sand (3–5 mm in size) on top of the soil.
Watering Guidelines
Follow the rule: water thoroughly only when the soil is completely dry. If the soil isn’t dry, do not water.
Spring and autumn: These are the growing seasons. Provide full sunlight and water 3–4 times per month, adjusting for pot size and local climate.
Summer: The plant enters dormancy. Maintain good ventilation and shade the plant. Provide minimal water (just enough to prevent root desiccation), about 3–4 times monthly, applying water sparingly to the pot edges.
Winter: When temperatures fall below 5°C (41°F), gradually reduce watering. At 3°C (37°F) or lower, keep the soil dry and avoid temperatures below -3°C (27°F) to ensure safe overwintering.
Important Tips
Always water the soil directly. Avoid getting water on the leaves to maintain their appearance.
Never let water enter the plant’s core to prevent rot.
Light and Temperature
Spring and autumn: Provide full sunlight during the active growth periods.
Summer: During high temperatures, the plant enters dormancy. Ensure good ventilation and provide shading.
Growth Characteristics
Compared to other Sedum species, Crassula Alstonii plants grow more slowly and tend to form clusters over time.
Summary of Key Care Points
Light and Temperature
Crassula Alstonii thrives in sunny environments. Full sunlight is ideal during spring and autumn.
Provide shade and ventilation during summer dormancy.
Watering
Water only when the soil is completely dry.
During the growing season, water about 3–4 times per month.
Avoid watering during winter unless necessary to prevent freezing. Always keep soil dry in extremely low temperatures.
Propagation
The most common propagation method is cutting (decapitation). The remaining base will produce new shoots. Seeding and division are also viable methods.
Soil
Use a well-aerated soil mix of peat, coal cinder, and perlite (1:1:1). Add a top layer of coarse river sand for better aeration and to prevent direct contact between the plant and soil.
By following these care guidelines, Crassula Alstonii plants will thrive, form beautiful clusters, and maintain their slow-growing, elegant charm.