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.


Image
Answer from NGA
January 6, 2006

0

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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