What are the plants whose flowers bloom into balls?

Hydrangea

Growth characteristics: It likes humus-rich leaf mold; it needs a lot of water in spring and summer, but is afraid of waterlogging to avoid waterlogging and root rot; the suitable growth temperature is between 15-20℃, too high or too low will affect its growth.

Wolfsbane

Growth characteristics: Wolfsbane generally grows in the Qinghai-Tibet Plateau. It can adapt to harsh climates such as drought and cold. It has a well-developed underground root system and a strong ability to absorb water. The plant is poisonous and cannot be eaten, but it can be crushed and applied externally to reduce swelling and remove blood stasis.

Tennis flower

Growth characteristics: Tennis flower is native to tropical South Africa. It likes warm and humid environment, avoids drought and is not cold-resistant.

Hoya

Growth characteristics: Hoya is a plant that grows widely in Guangdong, Fujian and other places in southern my country. It often grows on stone walls, tree trunks and other humid environments. It likes warm, humid and semi-shady environments and avoids direct sunlight.

marigold

Growth characteristics: Marigold generally grows in a warm and humid environment. It likes light. Plenty of sunlight can promote bright and large flowers.

Echinops cyanobacteria

Growth characteristics: Blue spiny head mainly grows in Xinjiang in my country, and is also distributed in Inner Mongolia and Northeast China. It has strong adaptability, is cold-resistant and drought-resistant, and prefers loose and breathable sandy soil.

Stinking peony

Growth characteristics: The stinking peony looks similar to the peony, but it is called the stinking peony because it emits a foul smell. It has strong adaptability and is easy to maintain, making it a common garden flower.

Allium grandiflorum

Growth characteristics: The flowers of Allium grandiflorum are similar to those of vegetable onions, but are larger. It likes loose sandy soil with good drainage and light. It needs to pay attention to the combination of water and fertilizer during the growing period.

Ixora

Growth characteristics: Ixora, also known as water hydrangea, is a common ornamental potted flower in southern China. It likes a hot and sunny environment, is afraid of cold, and likes acidic soil.

Star Flower

Growth characteristics: Star flower is native to Africa, likes high temperature and cannot tolerate low temperature; it needs sufficient light time and intensity; it is drought-resistant but afraid of waterlogging, so it should be watered in moderation to avoid water accumulation.