A Detailed Guide to Wintersweet Planting Methods and Care Techniques
Wintersweet (Chimonanthus praecox) is a deciduous clump-forming shrub and a traditional precious ornamental flowering tree unique to China, with a long history of cultivation and a rich wintersweet culture. It blooms at the end of winter before the leaves emerge; the flowers are borne singly in the leaf axils of one-year-old branches, with short stalks and cup-shaped receptacles, and the multiple tepals are arranged in a spiral, yellow and waxy, with a flowering period from December to January and a strong fragrance. It produces numerous achenes, which mature from June to July. It originated in central China and is now cultivated in all regions. It likes sunlight and can tolerate shade, cold and drought, but dislikes waterlogging. The wintersweet flowers bloom proudly in frost and snow, with yellow flowers like wax and a rich, pungent fragrance, making it a major ornamental flowering tree for winter. Wintersweet is mainly a flower that blooms in winter and is a relatively traditional flowering tree in China.
1. Soil: For potted wintersweet, use loose, fertile sandy loam rich in humus.
2. Watering: Wintersweet is drought-tolerant and afraid of waterlogging; if moisture is excessive and the soil is too wet, the plant grows poorly and flower bud differentiation is affected. Therefore, for potted wintersweet it is best to keep the soil on the dry side; do not water when it is not dry, and water thoroughly when you do, but during the "dog days" of high summer heat, water more to maintain normal plant growth and allow normal flower bud development.
3. Temperature: Wintersweet likes sunlight and also tolerates partial shade. It is afraid of wind and relatively cold-tolerant, and can overwinter safely when the temperature is not below -15°C; it can be grown outdoors in areas south of Beijing, and if the flowering period encounters a low temperature of -10°C, the flowers suffer cold damage.
4. Pruning: Wintersweet can be pruned in several rounds; the most common pruning time is after flowering, when, in order to give the wintersweet better ventilation, it is best to prune overly long branches and diseased or pest-infested branches. The main focus of summer pruning is shortening leggy branches. Winter pruning is for shaping.
5. Fertilizing: Wintersweet is a flowering plant that likes fertilizer, and timely fertilization can promote flower bud differentiation and more blooms. Wintersweet fertilization is mainly phosphorus and potassium, with little nitrogen; the approximate ratio of phosphorus, potassium and nitrogen is 2:1:0.5. Fertilizing this way makes wintersweet produce large, numerous and strongly fragrant flowers.
6. Pests: Wintersweet has fewer diseases and more pests, commonly including aphids, scale insects, slug moths and tortricid moths; aphids suck sap on tender shoots, young leaves and flower buds, scale insects suck sap on branches, and slug moths and tortricid moths bite and eat leaves, new buds and flower buds. When pests appear, they can be sprayed and killed with a 50%***1000-fold solution; to reduce pollution of the flower-growing environment, homemade methods can also be used to kill pests, such as using vinegar solution to kill scale insects and laundry detergent water to kill aphids; if there are only a few, they can be caught by hand.
