Answer:
Lotus flowers rely on their underground roots, however, and die in harsh environments. The seeds then begin to demonstrate the plant’s vitality in the face of natural disasters. One good example is the catastrophic flood of 1954 in which all lotus flowers disappeared. Three years later, water receded to normal levels and in the shallow parts of the lake, the depth was suitable for lotus seeds to grow. Before the flood, numerous seeds had scattered around in the lake and the plants began to grow young leaves in great density, just like artificial seeding. Just two years later, this natural development restored the original scene of abundant lotus flowers.
Explanation:
They are also very adaptive to local environments. They are not afraid of the scorching sun and bloom in hot summer when there are very few other flowers blooming. They are resistant to cold temperatures. Even in the freezing winter, they can survive under frozen ice as long as their roots are kept in water or mud at 5 degrees Celsius. Lotus flowers are not sensitive to soil though mildly acidic, organic clay loams are ideal for them. They can survive and flourish in different types of soil across the country. In the Nansha Wetland near the estuary of the Pearl River in Guangzhou, a large area of lotus flowers flourish in highly alkaline water beside a forest of mangroves which grow only in sea water. In a test conducted in Honghu Park in Shenzhen, lotus flowers were found to be resistant to pollution and have a water-purifying function. Lotus flowers love the sunshine and are not shade-tolerant. They are ideally planted in areas with direct sunlight. Studies have shown that lotus flowers can only bloom in households that can offer more than 6 hours of direct sunshine per day. Lotus flowers prefer warmth. The terminal buds of lotus roots in pools begin to bud when the temperature rises to above 13 degrees Celsius in early April. In mid- and late May, the leaves grow above the water. In early and mid-June, blooming starts. In late June and mid-August, they reach full bloom. In early September, the last flowering period starts. In July and August, their fruit reaches maturity. In mid- and late August, the roots are mature. In early and mid-October, their leaves turn yellow and wither, and the plant enters dormancy. The entire growth period is 160 to 190 days and needs an accumulated temperature of about 4,000 degrees Celsius. That is the ecological reason why lotus flowers can flourish everywhere.
