By Heslop
Lancashire,
United Kingdom 
will sun flowers grow next season if left in the ground
26 Sep, 2010
Answers
keep the seed for next year if you want to grow more sunflowers. Also the dried heads make superb winter food for the wild birds.
26 Sep, 2010
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If they're the large flowered, typical sunflowers, no, they're annuals.
26 Sep, 2010