Getting paragraphs with textile

When using textile to format text, how can I get it to insert html p tags?.. It seems that no matter how many carriage returns I put in the offending text to be rendered, redcloth just adds br tags at the end of each paragraph (rather than wrapping it with p tags).

Is there something I need to put in the text to make paragraphs or is this a bug with redcloth?

Thanks for any help, Damien