Reasons Why Cymbidium sinense Flower Buds Fail to Bloom and Solutions
Cymbidium sinense is a terrestrial plant of the genus Cymbidium in the orchid family. Because its flowers bloom around the Beginning of Spring solar term and the upcoming Spring Festival, a time of bidding farewell to the old and welcoming the new, it is also known as the "New Year Greeting Orchid" and the "Year-Entering Orchid." However, some flower enthusiasts find that their Cymbidium sinense has flower buds but they simply won't open. What should be done in this case? Let's take a look below.
Scientific Fertilization
To encourage Cymbidium sinense to bloom, we need to appropriately increase the application of phosphorus and potassium fertilizers while reducing the use of nitrogen fertilizer. This is because phosphorus and potassium fertilizers can promote flower bud differentiation and bud formation, prompting the buds to bloom, whereas excessive nitrogen fertilizer application will lead to vigorous vegetative growth in Cymbidium sinense, thus preventing it from blooming. Xiaoye recommends foliar spraying or watering with monopotassium phosphate, combined with Yehong Shiguang microbial inoculant special orchid fertilizer, which can make the root system of Cymbidium sinense well-developed, reduce pests and diseases, and most importantly, promote blooming and extend the flowering period.
Light
Although orchids fear scorching sun exposure and are relatively shade-tolerant, long-term lack of light will affect photosynthesis, thereby affecting growth, development, and blooming. Therefore, during the flowering period of Cymbidium sinense, light should be appropriately increased. On the premise of ensuring the orchid leaves are not scorched, let it see more sunlight appropriately, especially the morning light before 9 a.m., which is very beneficial for orchid growth and blooming.
Control Watering
Another important point is to control watering. During its flowering period, if watered too much, it will cause vigorous vegetative growth in Cymbidium sinense, with leaves growing rapidly, leaving insufficient nutrients for the flower buds to develop and grow. Therefore, watering should be appropriately controlled to inhibit vegetative growth and allow nutrients to concentrate on the flower buds.