When should I pull up my turnips?

Question:This is my first year planting turnips, and I went crazy! I have a huge patch. It's too early for them to be coming out of the ground and I'm thinking I didn't "thin" them out enough. It's in WI and would it do any good to now thin them out, or am I doomed to having a lot of tiny turnips?

Answers:
got this from the web Sow turnip seeds 1/2 inch deep and 1 inch apart in rows that are 12 to 36 inches apart. Thin the plants so that they are 2 to 6 inches apart. You can sow turnips in the spring for a summer crop, in the summer for a fall crop and sometimes even in the early fall for a fall crop. Turnips are flexible.

Days to harvest: 35 to 70 days
Days to germinate: 3 to 7

hope this helps ya out and good luck!!