Sunflower plant(s)? - Knowledgebase Question

McMinnville, OR
Question by eobmob9
January 6, 2006
Is the Prairie Sunflower, the Sawtooth Sunflower and the Maximillian Sunflower the same plant? If so,is it a perennial? If not, which one is a perennial? How TALL and WIDE do they grow?
Thank you.

Answer from NGA
January 6, 2006


Sawtooth Sunflower, Helianthus grosseserratus, is an Illinois native. Helianthus maximiliani is the Prairie or Maximillian sunflower. Maximilian and sawtooth sunflowers are so close to identical I can't tell them apart but sawtooth sunflowers bloom a little sooner and the well-bred Maximilians have more flowers.

These plants are perennials and will grow 36-72 inches tall and about 40 inches wide.

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