"Smell like a rose" isn't an idiom because it means just what it looks like it means. You are comparing someone's smell to that of a rose. Comparisons with AS or LIKE are Similes.
In general, the rose smell is very rich and warm.The fragrance varies depending on the kind of rose. Ex: The English Rose and The Alexander Mackenzie Rose smell completely different. Some are potent, some are ephemeral. Even on the same plant, the fragrance can vary from one flower to another in strength and tone.Unfortunately, many roses are bred to have no smell at all.
simili with as he smell as rose
The volatile organic aromatic compounds of pleasant smell evaporates from rose and diffuses through air out. That is why a person passing nearby a rose garden will feel the pleasant smell of rose.
No Smell is what you do when you inhale and "Smell" a rose or a steak on the BBQ or something nasty. Stink is a nasty odour that you can smell
Preference, I personally dislike the smell of roses - Where as I quite like the smell of sunflowers.
In general, the rose smell is very rich and warm.The fragrance varies depending on the kind of rose. Ex: The English Rose and The Alexander Mackenzie Rose smell completely different. Some are potent, some are ephemeral. Even on the same plant, the fragrance can vary from one flower to another in strength and tone.Unfortunately, many roses are bred to have no smell at all.
Hibiscuses do have a smell to them but it's a pleasant one. The smell reminds me of Rose of Sharon.
they smell like roses and taste like roses
Many rose growers like to dig well-rotted manure into their rose beds.
A Rose by any other name would smell as sweet... (Look it up.. :)
not that much but rose smells good