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In reference to the last answer to this question, and including my edit:

Sunflowers are ANNUALS, so they come up every year.

However, I've seen that they last anywhere from three weeks to a month, depending on the size of the bloom.

Actually, ANNUALS only come up one time, it is PERENNIALS that come up every year. A sunflower does shed seed and more will come the following year from those seed but the original plant only comes once whereas a perennial is the same plant year after year. A good way to remember is that P for Perennial is also P for Permanent. Annuals bloom longer, usually from spring through fall. Perennials only bloom for two or three weeks per year. Even a perennial will only live three to five years though, and will eventually either need to be replaced or at least allowed to re-seed itself.

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13y ago
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10y ago

Sunflowers (Helianthus annuus) are flowering annual dicots. Since they are annuals, they only live one season, and that would be the warm season for the sunflower, since it is very intolerant of cold. If you can get a seed started in late March, and your variety has several branches and you cut back the mature heads, the plant might live into October, as long as there is not an early frost. Six months is a long life for a typical sunflower.

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10y ago

Short answer: the sunflower lives during the warmth of late spring, summer and early fall. It dies when the seed head starts to drop seeds, or when the cold of late fall starts to bite.

The sunflower (Helianthus annuus) is a flowering annual dicot. It starts life as a seed. Germination will not begin until the soil temperature is between 55F & 60F, as the plant is sensitive to cold. The young plant will grow vegetatively for 6-8 weeks before a flower appears. Actually, the flowers are where the seed head will form, each floret representing a possible seed. It takes about a month for the seed head to mature and begin to drop its seeds. About the time of seed drop, the plant will start to wither and die. This might be mid summer, or it might not be until the cooling days of autumn.

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12y ago

anytime if how do you take care of your flower

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15y ago

Sunflowers are annuals, and so they only live one year.

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13y ago

it depends on when it flower's. it should only last 2 weeks after it flowers

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7y ago

A Sunflower is grown from seed in Spring and dies off in Autumn, early Winter. So is classified as an Annual Plant.

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13y ago

1 millisecond

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11y ago

they live for 2 years

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Q: How long does a sunflower live?
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