I bought a yellow miniature rose plant about a year ago. This year it has started blooming, but rather than being yellow, the flowers are a light greenish color with a pink blush on parts of some of the petals. It isn't unattractive, but I wasn't sure if this meant there was something wrong with the plant? Otherwise the leaves are dark green and healthy looking (from my limited knowledge, anyway) and it is growing well. I am new to the whole gardening thing, so I was hoping someone would have some helpful advice! Thanks!