How to grow glass begonia? Detailed guide to cultivation methods and precautions
Sowing: sow in pots from late March to April each year; seeds germinate 1 week after sowing; once seedlings reach 3-4 cm in height they can be moved into pots, and once leaves have grown they can be planted out. Light: suitable for growing in a sunny environment, relatively tolerant of severe cold, and can be placed outdoors to overwinter. Pruning: before buds break in early spring, pruning can be carried out, removing dead and weak branches and leaves to promote plant growth.
Cultivation methods and precautions for glass begonia
1. Wax begonia (Begonia semperflorens) has well-developed fibrous roots and grows vigorously; during the growing period, attention should be paid to fertilizer and water management, applying dilute fertilizer water once a week. Watering should be sufficient to keep the potting soil moist, but not overly wet, and ventilation should be enhanced; in winter, the amount of watering should be appropriately reduced. During cultivation, individual leggy branches should be pinched back to encourage the side branches to bloom profusely and to maintain a good plant shape. Generally, after 2 years of cultivation the plant gradually grows weaker and its shape becomes untidy, at which point it is discarded.
2. In summer, wax begonia is not tolerant of direct sunlight or rain, so shading and rain protection should be provided. In winter it prefers ample sunlight; insufficient light results in weak growth, slender plants, and faded leaf and flower colors, while excessively strong light causes leaf shrinkage and scorched spots, and when fertilizer is insufficient the plant becomes stunted and the leaves turn red.
3. High temperature and high humidity favor the reproduction of pathogens, so dense planting should be avoided during cultivation to facilitate ventilation. When growing in a greenhouse, if the climate is experiencing a large day-night temperature difference, watering in the evening should be avoided, so as to prevent the night temperature from dropping, causing excessive humidity or even condensation. In addition, appropriately controlling the temperature can also inhibit the spread of disease.