Question
Hello - I'd love to buy a rose to plant for my niece Jessica - is there such thing as a Jessica rose?

Answer
There is an ideal rose called Pretty Jessica which is a David Austin rose. It is a medium sized plant with very double flowers that are extremely fragrant. There is a picture of Pretty Jessica rose on this page  
http://www.justourpictures.com/roses/english.html
Pickering Nurseries in Canada sells this rose and they ship into the States.
http://www.pickeringnurseries.com/tw/Web_store/web_store.cgi
David Austin roses in the States should be able to tell you if you can buy one in the States as it is there rose.
http://www.davidaustinroses.com/american/
Hope this helps.