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Percent of dollars spent on our mission

PDF is committed to using your funds efficiently to support our mission. To see how funds are spent, browse our financial information.

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The PDF Tulip

You may have noticed that PDF uses an image of a tulip throughout our website, our publications and other materials.  This is because the tulip is the official symbol within the Parkinson's community.

The tulip was first recognized as a symbol for Parkinson’s in 1980.  At that time, a Dutch horticulturalist named J.W.S. Van der Wereld decided to honor Dr. James Parkinson, the first person to describe Parkinson's in 1817, by naming a tulip after him.  It thus became a symbol for Parkinson’s.

PDF specifically uses a yellow tulip to denote optimism and hope.  The three petals are used to denote our three-pronged mission: Hope through research, education and advocacy.