How to Care for Black-Eyed Susan
As a flowering expert among vines, Black-Eyed Susan is deeply favored by gardening enthusiasts for its unique flower core shape and continuous flowering characteristics. To make this tropical beauty bloom enchanting flowers throughout the year, it is particularly important to master a scientific care system. This article will systematically analyze the care secrets of Black-Eyed Susan from environmental regulation to daily management.
Regulating the Growing Environment of Black-Eyed Susan
Accurate Temperature and Humidity Control
The native South African Black-Eyed Susan requires a daily temperature to be maintained between 20-28℃, and indoor heating is needed in winter to ensure it does not drop below 15℃. Combined with about 60% air humidity, local humidification can be achieved by placing wet pebbles in a tray, avoiding high temperature and dryness that causes bud drop.
Light Intensity Management
Ensure 6 hours of direct sunlight daily, and use a shading net to filter 30% of the intense light during the midday heat of summer. In winter, place it on a south-facing balcony, as sufficient sunlight can enhance the plant's cold resistance and promote bud differentiation.
Water and Fertilizer Management for Black-Eyed Susan
Scientific Irrigation Plan
How to Care for Black-Eyed Susan
Keep the growing medium moist but without waterlogging during the growing period, following the "dry-wet" principle. Water twice a day in summer, early morning and evening, with foliar misting; change to watering thoroughly every 5-7 days in winter. Using acidified water with a pH of 6.0-6.5 can prevent yellow leaves.
Nutrition Supply Strategy
Apply a high-phosphorus water-soluble fertilizer (N-P-K=10-30-20) twice a month, and add more calcium and magnesium fertilizers during the flowering period to enhance flower color. It is recommended to use a mixture of decomposed sheep manure and bone meal in a 3:1 ratio as a base fertilizer, and supplement with slow-release granular fertilizer once every quarter.
Propagation and Pruning of Black-Eyed Susan
Seeding Propagation Techniques
Select plump seeds and soak them in 40℃ water for 12 hours, then sow them in a peat and perlite mixture (1:1). Maintain a daytime temperature of 25℃/nighttime temperature of 18℃, and cover with plastic wrap to keep moist for 7-10 days to germinate. Pinch the top when the seedlings have 4 true leaves to promote branching.