When I got up this morning the air in the back garden was still and heavy with rose perfume. I can't remember it ever being so strong in the morning before. It's not as though there are masses of roses out at the moment either or that they are the most richly perfumed varieties. I suspect it was a combination of the scents of the rose blossoms that are open and the rose geranium foliage.
Maybe the electrical storm we had around 5:30 am set it off. It woke me with lightning that lit up inside of the house, blinds drawn and all, and thunder rumbling loudly but only a few drops of rain. Then again perhaps something (a cat?) had brushed against the rose geranium foliage releasing its fragrance. Very strange whatever the cause.