Helianthus - Wikipedia
Helianthus (/ ˌhiːliˈænθəs /) [3] is a genus comprising around 70 species of annual and perennial flowering plants in the daisy family Asteraceae commonly known as sunflowers. [4][5] Except for three South American species, the species of Helianthus are native to …
10 Types of Perennial Sunflowers to Grow Year After Year - The …
2024年8月2日 · The annual sunflower (Helianthus annuus) is a classic summer favorite. While easy to grow from seed, they must be replanted each year. The genus Helianthus also includes several perennial species. These are fairly long-blooming, late-season flowers, blooming in late summer through mid-autumn.
Perennial Sunflower Varieties - Gardening Know How
2022年10月6日 · Flowers in the Helianthus genus number about 50 and include annuals, those large, sunny yellow blooms you mostly see in gardens. They also include Helianthus perennial sunflower varieties.
Helianthus - North Carolina Extension Gardener Plant Toolbox
Plant in the full sun for the most blooms and enjoy the flowers from late summer until the first frost. Leave the seed heads standing to provide a late fall and winter food source for birds. The giant sunflower H. annuus is the plant that provides the seed we snack on and sunflower oil.
Sunflower | Description, Uses, & Facts | Britannica
2025年1月11日 · sunflower, (genus Helianthus), genus of nearly 70 species of herbaceous plants of the aster family (Asteraceae). Sunflowers are native primarily to North and South America, and some species are cultivated as ornamentals for their spectacular size and flower heads and for their edible seeds.
Sunflowers: Planting and Care Guide - Gardenia
Cherished for their beauty, Sunflowers (Helianthus) are striking ornamental annuals or perennial plants grown for their colorful summer and fall blooms. Fast-growing, they can reward you with glamorous blooms between 55 and 100 days after planting, depending on the variety grown.
Helianthus divaricatus (Woodland Sunflower) - Gardenia
Helianthus divaricatus (Woodland Sunflower) is a showy rhizomatous perennial with sessile or short-stalked leaves, 6 in. long (15 cm), and a profusion of yellow flowers, 2 in. across (5 cm), each adorn with up to 8-15 yellow rays and a darker yellow center disk.
Helianthus Flore Pleno - Bluestone Perennials
Helianthus Flore Pleno - Common name: Perennial Sunflower, Sunflower - This robust plant produces yellow double flowers throughout the summer. Its deep green foliage is an excellent screen or foil to showcase small plants.
Helianthus annuus - Plant Finder - Missouri Botanical Garden
Helianthus annuus is native to dry plains, prairies, meadows and foothills in the western U.S., Canada and northern Mexico. It is a coarse, hairy, leafy, fast-growing annual that typically grows 5-10’ tall on stiff upright stalks.
Helianthus annuus (Common Sunflower) - Gardenia
Helianthus annuus (Common Sunflower) is a tall, fast-growing annual with broad, oval to heart-shaped, roughly hairy leaves. It produces huge, brilliant flowers in summer, up to 12 in. across (30 cm), with yellow petals surrounding a dark chocolate central disk.