When to propagate cacti through cutting
As a representative of drought-resistant succulent plants, cacti propagation through cutting is the most commonly used cultivation method by gardening enthusiasts. Mastering the correct cutting time and method can help the fleshy stems take root quickly and grow healthy new plants. This article will systematically analyze the full process of cacti propagation from seasonal selection to operational details.
Analysis of the best period for cacti propagation
Optimal temperature range in spring and autumn
Cacti are most suitable for root growth in a constant temperature environment of 20-25°C, making the end of spring and early summer (April-May) and early autumn (August-September) the most ideal. At this time, the day and night temperature difference is stable within 5°C, avoiding the risk of water loss due to high temperature or frostbite due to low temperature.
Adjustment principles based on regional climate
In dry northern regions, it is recommended to start cutting in late March, while in the humid south, it can be postponed to October. Indoor environments with temperature control equipment can propagate cacti throughout the year, but it is necessary to maintain 50%-60% air humidity.
Five-step operation method for cacti propagation through cutting
Selection of strong cuttings
Choose 2-3-year-old mother plants and use disinfected tools to cut off the plump stems with a diameter of ≥3cm. Keep the base growth point intact and make a 45° oblique cut to increase the root area.
Scientific proportioning of growing medium
Use a mixture of decomposed leaf soil, coarse sand, and perlite in a ratio of 3:5:2 to ensure a slightly acidic environment with a pH value of 6.0-7.0. It is recommended to use red pottery pots or plastic pots with holes in the bottom to prevent waterlogging and root rot.
Standardized cutting process
Intelligent environmental control
Place in a scattered light environment, keeping the medium slightly moist but not waterlogged for the first 15 days. Use a thermometer and hygrometer to monitor, with a daytime temperature of 25°C and a nighttime temperature of 18°C being the fastest for root growth.
Judging root development
About 20-30 days later, gently pull the plant, and if you feel resistance, it indicates that roots have formed. At this point, you can gradually increase sunlight, and after 3 months, you can apply a diluted cacti-specific nutrient solution at 1:1000.
Summary of key points for cacti propagation and care
Cacti that have been successfully propagated need to go through a 1-year slow seedling period, during which frequent transplanting should be avoided. In the summer, provide 30% shading at noon, and in the winter, maintain an overwintering temperature above 10°C. Regularly rotate the pot to ensure an even plant shape, and replace the top layer of the medium every spring to maintain soil fertility.