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Learn about the common sunflower (Helianthus annuus), a large annual plant with edible seeds and a distinctive flower head. Discover its origin, description, heliotropism, floret arrangement, and uses.
Aug 23, 2024 · Sunflower, genus of nearly 70 species of herbaceous plants of the aster family. Sunflowers are native primarily to North and South America, and some species are cultivated as ornamentals for their spectacular size and flower heads.
- The Editors of Encyclopaedia Britannica
With bright blooms that go all summer, sunflowers are heat-tolerant, resistant to pests, and attractive to pollinators. Harvest the seeds in late summer and fall for a healthy snack, or feed them to the birds! Learn how to plant, grow, and care for sunflowers.
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Bring the sunshine to your garden with vibrant sunflowers; watch them tower majestically, then gather their blooms to create your own radiant sunflower bouquet – a joy in every petal! Cherished for their beauty, Sunflowers (Helianthus) are striking ornamental annuals or perennial plants grown for their colorful summer and fall blooms.
The black-brown flowers in the centre of the head, called disk flowers, grow in a spiral formation, and mature into sunflower seeds over time. Read the scientific profile for the common sunflower. Bees on a sunflower (Helianthus annuus), Andrew McRobb © RBG Kew.
Helianthus annuus or Common Sunflower is an annual herb that can reach up to 3 m in height. Leaves are ovate to heart-shaped, covered in coarse hairs. The single large yellow flower is known as a Capitate inflorscence made up of yellow ray and disk florets.
