Helianthus, Annual Sunflower, Common Sunflower 'Mammoth Russian' (Helianthus annuus)

Blossom starting to mature @ 75 days from seed.

by Big_Red Jul 22, 2004 8:44 AM

Plants grow 12 feet or over, should be staked.

by Big_Red Jul 21, 2004 8:44 AM

nice sunflower

by blondemommyof2 Sep 20, 2004 10:38 AM

smaller then the other sunflower i posted but still very pretty

by blondemommyof2 Sep 20, 2004 1:02 PM

close up of dieing sunflower

by blondemommyof2 Sep 20, 2004 1:02 PM

by KactusKathi Oct 6, 2004 12:55 PM

Mammoth Sunflower from seed, sowed in soil / steer manure mix

by tiffanya Sep 4, 2005 11:36 PM

by joebloom Jun 2, 2006 11:14 PM

Zoom Shot. Check out the bee!

by joebloom Jun 1, 2006 10:27 PM

Majestic!!!

by joebloom Jun 1, 2006 10:22 PM

This one is a volunteer that came up from the previous year's seed. Apparently they don't always come back true. ☺

by Big_Red May 19, 2007 1:35 AM

Mammoth sunflower plant, with leaf 16 inches across and growing.

by atisch Jun 22, 2010 4:53 AM

August 2012 - Mason, New Hampshire

by Dosetaker Sep 3, 2012 11:05 AM

by Dosetaker Sep 3, 2012 6:38 PM

by Dosetaker Sep 3, 2012 6:38 PM

Sunflower - Mammoth - 2013 Fairbanks Alaska #1

by queenofquiet Oct 18, 2013 6:25 PM

Sunflower - Mammoth - 2013 Fairbanks Alaska #2

by queenofquiet Oct 18, 2013 6:25 PM

Sunflower - Mammoth - 2010 Fairbanks Alaska #1

by queenofquiet Oct 18, 2013 6:25 PM

Sunflower - Mammoth - 2011 Fairbanks Alaska

by queenofquiet Oct 18, 2013 6:25 PM