Season 1
Shoulder length, light blond, and a bit gingery.
Season 2
First her brown curly halloween wig, then blonder, with layers and a side parting. Nice.
Season 3
Curled at the ends, a bit darker blond, circles her face and makes her look a bit younger, but nice.
Season 4
Straightened, still with layers at first but then a curly style with ringlets.
Season 5
Less curls this time, worn up or down. She straightened it at the end of the season.
Season 6
At first it was wavy but it made the hair look greasy. About 6 eps in and she cut it just below her ears in a cute style, making her look younger.