Here’s a list of the different names of flowers that begin with the letter X. With an emphasis on common and easy to grow types:
Xanthoceras Sorbifolium
It is also called the yellowhorn, shiny leaf yellowhorn, goldenhorn, Chinese flowering chestnut. The flowers are 2–3 cm diameter, with five white petals that bloom in the spring.
Xeranthemum
It has silvery flower heads with purplish tubular flowers.
Xerophyllum
Xylobium
Xylosma
Also known as brushhollies, xylosmas, or, more ambiguously, “logwoods”
Xyris Difformis
It is also called the bog yelloweyed grass.