Last year early to mid summer I got a, maybe six inch long, rosemary cutting from a friend. I was able to root it in water and when I planted it, it had a ton of long roots. It has been outdoors since late summer, early fall, and still hasn't died yet, after an extremely mild winter in the Northwest, but it still hasn't grown. I noticed when I planted it that the roots had grown, but the above ground portion of the plant is still a little stick. It has a few yellow leaves around the bottom, the top is vibrant green and it's been like that for as long as I can remember, but it still wont grow any larger. How can I help it grow on a budget?