The Breeding Method and Precautions for Euphorbia polyandra
In recent years, Euphorbia polyandra has become a popular choice for urban family greenery due to its unique columnar shape and low maintenance characteristics. Although this succulent plant is robust, it still requires a scientific approach to maintain its lush and upright state. This article will systematically comb through the key care points from the growth medium to environmental regulation.
Detailed Explanation of Core Care Elements
Selection of Growth Medium
It is recommended to use a clay pot with a granular soil medium, as the breathability of the clay pot effectively prevents waterlogging and root rot. The medium recipe can be mixed according to the ratio of peat soil: perlite: vermiculite = 3:2:1, with a 2cm thick layer of ceramic stones at the bottom to enhance drainage. Avoid using heavy yellow soil, and every spring, you can add decomposed pine needle soil to improve the soil structure.
Light Control Plan
Ensure 4-6 hours of scattered light every day during spring and autumn, and use double-layer shading nets to filter strong light in summer. In winter, it can be exposed to full sunlight, and if the column turns white, it should be promptly moved to a shady place. Rotate the pot every 1-2 months to ensure even lighting for the plant.
Water Management Rhythm
Adopt the principle of "thoroughly wetting and drying," watering once every 15 days in spring and autumn, and shortening to 10 days in summer. During the dormant period in winter, it can be extended to 25 days, using a bamboo stake insertion method to check the moisture of the potting soil. When watering, slowly penetrate along the edge of the pot, avoiding wetting the surface of the column.
Temperature Control Techniques
Maintain the optimal growth temperature of 15-28°C, and move the plant indoors提前 in winter. When the temperature drops below 8°C, it is recommended to use a plant insulation cover, and at night, a transparent plastic bag can be used to form a mini greenhouse. In the high summer temperatures, enhance ventilation to avoid diseases caused by a humid environment.
Advanced Care Points
Nutrition Supplement Strategy
Bury bone meal as a base fertilizer when repotting, and apply slow-release fertilizer every 45 days during the growing season. When growth slows down, a diluted solution of potassium dihydrogen phosphate can be sprayed on the leaves. Be careful to avoid excessive nitrogen fertilizer, which can cause the column to crack.
Repotting Operation Norms
It is recommended to change to a larger pot every 2 years, with the best time for repotting being around Qingming Festival. During the operation, retain 1/3 of the protective soil, trim the decayed roots, and let them dry for 2 days before repotting. After repotting, place the plant in a shaded area for 7-10 days to acclimate, during which watering should be paused.
By using a scientific medium ratio, precise water and light control, and regular repotting maintenance, Euphorbia polyandra can maintain its ornamental value for many years. Special attention should be paid to preventing waterlogging during the rainy season and keeping warm in winter. By observing the plant's condition and adjusting the care plan in a timely manner, this desert spirit can display vibrant vitality on the urban windowsill.