What are the reasons for not flowering, as well as for flower and bud drop? "What are the causes of non-flowering and flower and bud drop?"

No flowering

If you want to understand the knowledge of flowering plants at home, why don't they bloom? Why do flowers and buds fall? The editor of the website will introduce to netizens next.

Often, the flowers we cultivate laboriously have vigorous branches and leaves but do not bloom, some bloom but with small flowers and pale colors, and some have flowers and buds falling. What exactly causes this?

In summary:

(1) Improper watering and fertilizing. During the growth of flowers, excessive watering and fertilizing can cause excessive growth of branches, and most of the nutrients are used for the growth of vegetative organs (roots, stems, leaves), leading to a lack of nutrients in the reproductive organs (flowers, fruits, or seeds), which affects the formation of flower buds and results in no flowering or few flowers. Even if they can bloom, it is easy for flowers and buds to fall. This phenomenon often occurs when too much nitrogen fertilizer is applied and there is a lack of phosphorus fertilizer, as insufficient phosphorus can affect the formation of flower buds.

Therefore, during the flower bud differentiation period, it is necessary to add more phosphorus-rich flower fertilizer or a 0.2% potassium dihydrogen phosphate solution, which is conducive to the formation of flower buds and bud development. Over-fertilizing during the bud formation period and irregular watering can easily cause flowers and buds to fall. Insufficient fertilization and water during the growth period of flowers can lead to poor growth, weak and矮小的 plants, which can also cause few flowers or small and poor-quality flowers.

(2) Unsuitable light and temperature. Since flowers come from different origins, their ecosystems vary. Some prefer sunlight, some prefer semi-shade; some prefer warmth, some prefer coolness, some prefer humidity, and some are drought-resistant. If their respective living conditions are not met, it can easily lead to falling flowers and buds.

(3) High salt and alkali content in the soil. Most flowers prefer slightly acidic and neutral soil and are afraid of salt and alkali. Even salt and alkali-tolerant flowers, such as geraniums and roses, will be affected by growth and flowering when the soil salt content exceeds 0.1% and the pH exceeds 7.5. This is because under slightly acidic conditions of pH 6-7, the availability of nutrients is best, which is most suitable for the growth and development of flowers. Acidic soil not only affects flowering but can also cause plant death in severe cases.

(4) Lack of pruning. If cultivated flowers and trees are not pruned and shaped for a long time, the branches will be disorderly. This not only affects appearance but also consumes a lot of nutrients due to unnecessary branches, which affects the formation of flower buds and is one of the reasons for no flowering or few flowers.

(5) High indoor temperature in winter. Most flowers are in a state of dormancy or semi-dormancy in winter, and the room temperature should be around 5 degrees Celsius. Even for some warm-loving flowers, such as米兰 and glass jade, the room temperature should not exceed 12 degrees Celsius. Pomegranates, roses, peaches, potted grapes, and figs are suitable for low temperatures (about 0 degrees Celsius). If the room temperature is too high, it will affect the full dormancy of the flowers or cause early sprouting of leaves, consuming a lot of nutrients, which will lead to weak growth the following year, no flowering, or small and easy-to-fall flowers.

(6) Pest invasion. During the growth and development of flowers, they are often susceptible to pests and diseases, which can damage growth, affect nutrient accumulation, and is also a reason for falling flowers and buds.

The above sharing is the complete introduction to why flowers do not bloom or why flowers and buds fall, for everyone to learn and understand!