The Cultivation Method of Verbena hybrida
In courtyard plants, Verbena hybrida is favored by many gardening enthusiasts for its unique purple spike inflorescence and robust vitality. To cultivate a lush and flourishing bloom, one must master several key maintenance techniques while avoiding common planting mistakes made by beginners.
Three Key Elements of Environmental Regulation
Soil Selection and Improvement
Give priority to well-ventilated sandy loam soil, and mix in 30% perlite to enhance drainage. For potted plants, it is recommended to use a formula of peat soil plus coarse coconut bran (2:1), and the substrate should be replaced every two years to avoid consecutive cropping obstacles.
Temperature and Humidity Control
20-28°C is the golden growth range; shading net protection is required when temperatures exceed 35°C in summer. Maintain a wintering temperature of above 5°C, and it is recommended to keep the plant indoors in northern regions.
Light Requirements
At least 6 hours of direct sunlight per day is needed, with east-west facing balconies being the most suitable. Insufficient light can lead to weak stems, so it is recommended to rotate the pot 180° every half month to maintain even light exposure.
Water and Fertilization Management Plan
Watering Frequency Control
Water thoroughly every 4-5 days in spring and autumn, and spray with water in the morning and evening in summer to increase humidity. Use the bamboo stake method: insert it into the soil for 2 minutes and pull it out; if it is moist and not sticking to soil, there is no need to water.
Scientific Fertilization Cycle
Apply diluted cake fertilizer (1:20) every half month during the growing period, and increase phosphorus and potassium fertilizers during the budding stage. It is recommended to use slow-release fertilizer as a base fertilizer, combined with foliar application of potassium dihydrogen phosphate solution.
Daily Maintenance Points
Weeding Techniques
When manually removing weeds, retain the root protective soil. Covering with 3cm of pine bark can suppress weeds. Avoid using chemical herbicides that may disrupt the soil microflora balance.
Disease and Pest Control
Regularly spray with carbendazim to prevent root rot disease, and use pymetrozine during the爆发期 of aphids. Apply methyl thiophanate for disease prevention before the plum rain season.
Winter Management
Prune 1/3 of the plant height before frost, and wrap with anti-cold cloth for wintering. For ground-planted plants, cover with 10cm of straw for insulation, and gradually remove it after spring.
Through scientific soil mixing, precise light control, and stage-based fertilization, combined with regular pruning for shaping, even beginners can cultivate a lush Verbena hybrida landscape. Special attention should be paid to drainage during the rainy season and protection during winter, as these details often determine the plant's survival years.