What is the meaning of purple tulips?

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What is the meaning of purple tulips?

 There are many different varieties of tulips, some in bud, some in full bloom, and almost all imaginable color combinations are available, such as the stunning purple tulips. So what is the meaning of purple tulips?

Previous message: Orange tulips in the field.

Tulips in a field in sunlight in spring, Holland, Netherlands.

Red tulips in a field with blue sky in the background.