Soil should be fine enough for root development and loose enough so crusting can't check sprouting of seeds. Too much nitrogen promotes excessive top growth-and forked roots, that taste fine but look funny. This could be a plus if your intent is to give Bunny lots of fresh carrot tops. Turnips and rutabagas, also winter crops, need the same conditions as carrots. Turnips are quick growing and should be harvested and used as soon as they are big enough.
Flavor gets milder if soil is kept moist.
Rutabagas store well in the ground. Plant September through March. You may prefer to contain these plants in pots or boxes. Clustered lavender and white flowers in June. Easy grower in light soil.