For a grandparent's birthday, choose flowers they can enjoy without extra work. An enormous arrangement may look impressive online but feel inconvenient in a small home. Before ordering, think about the recipient's tastes, where the flowers will sit, and who can carry them inside.
Follow their taste rather than a flower rule
Pink roses and carnations often make warm family gifts. Sunflowers can suit someone who prefers bright colors. But there is no single bouquet that every Chinese grandparent expects. If Grandma has always loved lilies, that matters more than an online color chart. Ask a relative about strong fragrances, allergies or household pets before choosing.

A wrapped bouquet may be easier to receive than a heavy basket or vase. For a birthday meal, a moderate arrangement can sit on a side table without obstructing conversation. If the recipient needs assistance with daily tasks, choose a design that a family member can maintain easily.
Arrange a reliable family handoff
Send the address in Chinese, including district, residential compound, building and apartment. Older relatives sometimes ignore unfamiliar calls, so nominate a family member who has agreed to answer the courier. Confirm that person will be available on the requested date in China. An overseas evening can already be the following morning in Beijing.

Write a card that sounds like you
“Happy birthday, Grandma. I miss our tea together and hope to visit soon” is more personal than a generic blessing. A short Chinese message such as “生日快乐,身体健康” also works. Check the spelling of the recipient's name and keep the text easy to read.
It is worth asking whether flowers are the best gift at all. Some grandparents prefer fruit, a family call or a small gathering. The thoughtful choice is the one that fits their life, not the largest bouquet you can afford.