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

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

   Annual Sunflowers. The sunflower we all grew up drawing is Helianthus annuus or the annual sunflower.Breeders have been working with this species for years. Selections range from the dwarf ...

3. Helianthus - Wikipedia

   en.wikipedia.org/wiki/Helianthus

   Helianthus (/ ˌ h iː l i ˈ æ n θ ə s /) [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 North America and Central America .

4. Common sunflower - Wikipedia

   en.wikipedia.org/wiki/Common_sunflower

   The common sunflower (Helianthus annuus) is a species of large annual forb of the daisy family Asteraceae. The common sunflower is harvested for its edible oily seeds, which are often eaten as a snack food. They are also used in the production of cooking oil, as food for livestock, as bird food, and as a plantings in domestic gardens for ...

5. Helianthus pumilus - Wikipedia

   en.wikipedia.org/wiki/Helianthus_pumilus

   Helianthus pumilus is a North American species of sunflower known by the common name little sunflower [1] or bush sunflower. [2] It is found in the western United States, primarily the Rocky Mountain region of Montana , Wyoming , and Colorado , with a few isolated populations in Utah and Idaho .

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

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   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.

7. Perennial sunflower - Wikipedia

   en.wikipedia.org/wiki/Perennial_sunflower

   Perennial sunflower is a crop of sunflowers that are developed by crossing wild perennial and domestic annual sunflower species. Annual sunflower is a major oilseed crop. Genes from wild perennial relatives may increase root depth and mass and extend the growing season. These upgrades means future varieties with higher yields and better soil ...