Is it true that the Book of Changes says that the family is prosperous and the people are not prosperous?

This is unreasonable. Planting flowers is to purify the air, beautify the space and cultivate sentiment. Things like feng shui are illusory and unreliable.

The so-called flowers are not prosperous and can't stand scrutiny. Just think, flowers are raised well because they are in a good mood, have time and energy to take care of them, and the flowers are bright and lush, so people's mood will be better and they will have a sense of accomplishment. How can you say that people are in poverty?

So this statement is not reliable.