Salvia is the latin name and sage is the common name. There are many different types of sage. The herb that you would use to cook with is Salvia officinalis and the one you see as a bedding plant is Salvia splendens.
No point cooking with the ornamental ones as they wont give you the flavour.
Thanks Hawkwalk.
I don't have the label for the one that I bought but it has much much bigger leaves that my previous culinary one. I haven't used it yet but it seems quite fragrant (ie by touching the leaves).
I suppose I just want to know if it is definitely safe to eat?!!
I am keen to eat it because I use a lot of fresh herbs in my cooking. My last plant died and this one looks different ie the leaves being much larger.
You sound surprised that I want to cook with it? Why?
I was wondering why you want to eat it because there are so many type of salvia that are ornamental and not meant to be eaten. They are not like the sage you cook with and unless you are sure which one you have then you may get a shock when you taste your stuffing!!
I would suggest you buy one that has a label so you know it is a culinery type.
There is a very large family of salvias. The type you can eat has tough, leathery, rough leaves and smells like sage.
Several salvias have amazingly scented leaves BUT they are NOT edible.
The two edible types are a grey leafed type and a greeny leaf type which is commoner.
If you really aren't sure - wait for flowering. The common sage has blue flowers clustering vertically up a spike.
Google sage and images to see what I mean.