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  2. Helianthus giganteus - Wikipedia

    en.wikipedia.org/wiki/Helianthus_giganteus

    Helianthus giganteus is a perennial herbaceous plant native to the northern United States and southern Canada that can grow up to 1–3 metres (3.3–9.8 ft) tall with instances to 4m (13 feet). The leaves are approximately 1 inch wide by 7 inches long, and partly rough.

  3. Are Sunflowers Perennials That Will Return Year After Year in ...

    www.aol.com/sunflowers-perennials-return-garden...

    The common sunflowers we see in cut flower bouquets are annuals, as are the sunflowers grown for seeds, but other species are perennials. Many perennial sunflowers are native to the prairie ...

  4. Helianthus annuus 'Russian Giant' - Wikipedia

    en.wikipedia.org/wiki/Helianthus_annuus_'Russian...

    Helianthus annuus 'Russian Giant' is a cultivar of sunflower in the family Asteraceae. [1] It is an annual. [2] [3] [4] ... Its seeds are considered to be edible. [5]

  5. Helianthus - Wikipedia

    en.wikipedia.org/wiki/Helianthus

    The disk of a sunflower is made up of many little flowers. The ray flowers here are dried In North Carolina A sunflower seed growing. Sunflowers are usually tall annual or perennial plants that in some species can grow to a height of 300 centimetres (120 inches) or more. Each "flower" is actually a disc made up of tiny flowers, to form a larger ...

  6. The Best Flowers and Perennials to Plant in Your Garden This Fall

    www.aol.com/best-flowers-perennials-plant-garden...

    Sunflower. Though perennial sunflowers are not quite as large or fast growing as their annual cousins (Helianthus annuus), they are prolific bloomers for up to 12 weeks into the late autumn ...

  7. How to Grow the Biggest and Brightest Sunflowers This Summer

    www.aol.com/grow-biggest-brightest-sunflowers...

    Alas, most sunflowers are annual flowers, meaning they do not come back each year like perennial flowers. But, there's a few pieces of good news. But, there's a few pieces of good news.

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