Is there something wrong with my thyme plant? As you can see there is some really green colored leaves on it and the others just looks dull.
CariAnn, your thyme looks like it needs a good trimming. Thyme grows pretty fast, and the old leaves get old fast and lose their luster. Try cutting back about 1/3 of the top growth but leave the long green stems if you can. If not, don't worry. Getting lopped just makes them branch out and you get more thyme stems.