Usually 3-5 bamboos are inserted in a bottle. It is best to insert a few pieces of rich bamboo in a bottle, mainly depending on the size of the vase and personal preference. Generally, inserting 3-5 pieces is more common and popular. Specifically:

1. Single branch insertion method: select a long branch of Fu Guizhu and insert it into a vase. It is suitable for simple or small vases, which can form contrast and highlight the effect. It means smooth sailing and undivided attention.

2. Double-branch insertion method: Two Fu Guizhu with similar length are inserted into the vase, symbolizing pairs, which is often used for wedding or holiday decoration. It means yes-man, attracting peach blossoms and consolidating feelings.

3. Multi-branch insertion method: three or more Fu Guizhu are inserted into the vase to form a complete visual effect, which is suitable for larger vases or decorative spaces. Among them, the insertion of five rich bamboos will not be particularly sparse, nor will it lack growth space because it is too dense, which is convenient for later care. Moreover, the number "5" often represents "earth" or "five elements" in Feng Shui, which means nourishing everything and making money. No matter how many branches you choose to insert, make sure that each branch has enough room to grow and avoid squeezing each other. At the same time, pay attention to the drainage and lighting conditions of the vase to ensure the healthy growth of bamboo.