I agree with the previous post. A very personal thing with no right or wrong answer. Carrots are a biennial, so they can be harvested anytime this year if the size suits your fancy. Later in the season, the carrot tops will die, if you have the row or bed marked, you can harvest the carrots anytime during the winter - at least is the case here in zone 8. Next year the remaining carrots will resume growth but then will be seed making time. As the flower shoots get larger, the central portion of the carrot gets more woody/stringy therefore woudl recommend harvest prior to the flower stems shooting up.
Last edited by hendi_alex
on Sat Jul 12, 2008 6:58 pm, edited 3 times in total.