Well, this year I have an abundance of roses, hurrah! You know, though, I couldn't pick the Etoile de Holland blooms, about 10 this year. It flowered early while we were enjoying warm weather (seems like a while ago now, huh?) and I enjoyed seeing it from the house so much and smelling its fragrance filling the warm still air out in the garden that I couldn't do it. Mum-in-law tells me that I may be able to get it to do a second flowering later in the year .. I shall feed it and talk to it and see.
So how do you make rose oil.. well you just stick the (dry) petals in a little jar, cover them with oil and sit the jar in the sun. I use sunflower oil, as it doesn't have much smell and the rose fragrance can be easily overpowered by stronger smelling oils. Put your jar on some kitchen roll because it will ooze however careful you are. The idea is that you leave the petals in the oil to infuse in the sun. When all the colour has gone from the petals you can carefully strain the oil, ringing all the oil from the spent petals using a muslin or coffee filter paper, then return to the jar with new petals. I just keep adding petals to the jar each day till its full then wait. The main problem is getting enough sunshine! I have a very sunny southfacing windowsill (which happily grows tomatoes and sunflowers) so I am hoping for the best, but the weather will have to start playing ball at some point if it is to work! It will take months and months, but I think it will be worth it.
I have read about making rose oil in a number of different places, all outlining the same basic method, but it is included in 'Herbal Remedies: A practical beginner's guide fo making effective remedies in the kitchen' by Christopher Hedley and Non Shaw, which I can't recommend highly enough if you want a good guide to making infused oils and salves at home. Its what I used when I started on my herbal adventures and has good clear instructions with plenty of photos.
Or, if you love all things historical, like me, you might like to read the Anglo-Saxon version, (translated) from the Lacnunga manuscript dating to around 1000AD:
'For rose oil, make it thus: one pound of oil, one ounce of mature rose flower; mix together in a glass jar under gypsum and hang in the sun for 40 days so its power may be styptic and cooling; use it for many illnesses, mostly for pain in the head ... that is emigraneum'
This is taken from 'Leechcraft: Early English Charms, Plantlore and Healing' by Stephen Pollington, which I was thumbing through researching for something else entirely when this rose oil entry jumped out and took me by surprise. Imagine my delight (especially as a migraine sufferer!)