Question
QUESTION: Where can I purchase long stem rose bushes?  I have looked on web and cannot find a site.

ANSWER: If you mean rose bushes which have nice long canes on them, then you will be out of luck as all nurseries will cut back the canes to fit them into the pots. Also cutting them back means they won't need as much water or care. However these rose bush will grow long canes in a couple of weeks for you.

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QUESTION: I want to buy a rose bush that produces roses on long stems for cut flowers like you purchase at a florist.

Answer
Sorry for the confusion Alice. What you want are roses classified as Hybrid Teas and  is very easy to find at garden centres and grows easily. This type of rose produces those lovely flowers you get in a florists shop. Just ask for a hybrid tea bush at a nursery and then select the colour you want. It is as easy as that.