Small purple flower? We have some unknown purple flowers growing within our yard. They...

We have some unknown purple flowers growing within our yard. They are small, and are approaching drooping bells. They are on a thick, elevated leafless green stem that is hollow inside. If anyone know this flower please tell me, appreciation.
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Answers:    Sounds like bluebells. You find two sorts, English and Spanish, both very similar.
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this sounds simply like the flowers I discovered contained by a part of my courtyard today! i goggled for pictures of bluebells and I think that's what they are. thankfulness for asking, now I know what I own too!
Can I plant more than one array of...