Temperature

Ranunculus japonicus likes a cool semi shade environment. It is not resistant to severe cold and is also afraid of extreme heat. The mild climate is suitable for growth. The most suitable temperature for its growth is about 20 ℃ during the day and about 8 ℃ at night, and the temperature difference between day and night should not be too large. In most parts of China, it is hot in summer. In such a high temperature environment, it will enter the dormancy period

Moisture

This kind of flower is not adaptable to water. It is afraid of moisture and does not like drought. When planting, pay attention to the good drainage of the soil, and the watering should be appropriate, neither too wet nor too dry. Especially in the later stage, if it is too dry, it will enter dormancy, and the state of bulb will become worse. After planting, the first watering shall be sufficient, and later watering shall be timely, and attention shall be paid to balancing the water volume. The method to judge the amount of water is also very simple. If the surface of the soil is dry and the leaves of buttercup are still fresh, it is the best state

Soil

The selection of soil is very important. The most suitable soil is neutral and slightly alkaline soil. Loose soil is conducive to drainage and ventilation. If it is a potted Buttercup, it is best to cultivate it with sandy soil with high humus content. This soil is rich in nutrition, loose and breathable, which is conducive to the rooting and development of buttercup

Illumination

This flower doesn't like strong sunlight, but relatively speaking, it belongs to a plant with long sunshine, so it can't lack sunshine. It grows best in a sparse shading environment

The sunshine gradually increases in spring, so we should reasonably shade to avoid sunburn; However, due to the short illumination time in winter, we need to pay attention to providing sufficient sunshine to ensure the illumination time

Long-term illumination can promote the early arrival of flowering period and promote the differentiation to form bulbous roots; The light period will delay the flowering period, but can promote the increase of lateral buds and the corresponding increase of the number of flowers. Therefore, by adjusting the length of light, we can control the appearance of buttercup and adjust the time of flowering

Fertilization

Fertilizer should be applied once or twice in the early stage of flower growth, especially in the late stage of flower growth. It is best to use compound fertilizer containing potassium once or twice in winter