Question
The only thing you did not mention was what is the best time of the year to do this.
Thank you very much.
Larry Houston

Answer
Hi Larry,
Thanx for your question.  We're talking about rose seeds right?  The best time to start rose seeds is probably in the fall.  You can either put them in a pot and leave them outdoors or do this artificially and I think I've already described that to you correct?  I apologize, I don't exactly remember the question.  Bear in mind that there are some species roses whose seed require three or more hot/cold periods.  These seeds have an unusually heavy dormancy and there are trees and shrubs like that mostly from Northern Europe and North America.  I hope this helps.
Tom