Flower dormancy management

Some perennial herbaceous flowers native to Mediterranean climate types, such as cyclamen, tulips, calla lilies, geraniums, Strelitzia reginae, and gold bells, will enter dormancy or semi-dormancy in the summer. The main reason for causing dormancy or semi-dormancy is high temperature and drought. When the temperature rises above 30 degrees Celsius, leaves of such flowers will appear yellow and fall off. Therefore, different management measures should be taken to make it safe. First, it must be shaded and ventilated, and the water control should be stopped. After entering the summer, put the dormant flowers in a cool and ventilated place, avoid direct sunlight, and when the temperature is high, sprinkle water on the ground to cool down. Flowers in the dormancy stage have low metabolic levels and consume less nutrients. Therefore, it is necessary to stop fertilizing, otherwise it may easily cause rot or rotten balls. It is necessary to strictly control the watering of the flowers in order to keep the potted soil wet. Since the hibernation of the flowers is in the rainy season, the flowerpots should be placed in a sheltered place to prevent the plants from getting dripping and the water in the basins. For bulbous flowers such as cyclamen, tulips, daffodils, etc., the bulb can be excavated at the beginning of the summer sleep to remove dry stems and leaves and the soil, and stored in a cool, ventilated, dry, and sheltered place. The preservation of bulbs is a key issue, especially for tulips. After excavating the bulbs in early June, the bulbs should be dried at a high temperature of 30 degrees Celsius and then placed in a cool, well-ventilated atmosphere at a room temperature of 17-20 degrees Celsius. It is the internal flower bud differentiation period. After the differentiation is completed, it is planted again in autumn. If the storage conditions are poor, the bulb will rot and die.