Question
Hi Lynnette, Do you have an 'abc' kind of instructions to follow to grow roses from cuttings in late summer-early fall in greenhouse growing to have them ready for display by spring?  I am eager to learn and don't mind the work it may involve.  Thank you so much, diane

Answer
In a professional set up roses are grown like the following and the duration of time that is required for the production of roses in greenhouses, may range from forty five to around fifty seven days. The time duration will depend upon factors like the variety of roses that are grown, the time during which the roses are being grown and the situation of light that prevails in the greenhouse. Growers of roses in greenhouses make use of 揌igh Pressure Sodium?lights. This is done in order to get the optimum amount of light for the proper growth of roses. Also in order to augment the rate of growth of roses in greenhouses, carbon dioxide may  be added.  Sunshine Mix no 5 can be used in order to grow rose bushes because this mix is hygienic and has no diseases in it. The water that is supplied and the fertilizers that are given are managed by a computer.
That is roughly the set up for growing the florist type roses and as you can see it is very technical.
First of all here is how you take the cuttings.
http://scvrs.homestead.com/Cuttings1.html
As you can see these cuttings will take a long time to mature until thy can be potted up. . Then they would have to be grown in their pots in the greenhouse for another year. It also depends where the greenhouse is and whether or not you get a very cold winter. Usually you count on about two years before you can see any really good flowers on  rose from a cutting.