I personally couldn't tell without a picture of the sage. If it IS sage, they don't generally need too much fertilizer... maybe a bit to get them jump started.

Purple sage isn't all purple. Take a look at the pic linked below. You'll see it's variegated purple/greenish.

With a lot of man-created plants (cultivars) you will find that the colours will often revert back to the original. For instance, purple basils nearly all eventually go back to green, and variagated rosemary will always go back to the original dark green eventually.

Here is a link that might be useful: purple sage

Daisy--- yes, I believe that is what I have. Hard to tell since it is last year's growth. What do I do? Do I cut anything for it to start up this year or does it just come alive?