I grew these carrots last fall for the first time and have been impressed. I planted them in late August and let them grow through the winter. I am zone 6b, lower middle Tennessee. The longer you leave them in the ground, the bigger they become. The picture above does not do them justice - they can easily become twice the size shown. Today is the first day of April (this is not a joke) and I am still harvesting them. I learned that if you push the dirt away from the top gently with your finger you can judge their size and choose to harvest the largest ones. My soil is hard rocky clay. Other carrots split and grow crooked,, which does not concern me, I am just going to cut them up anyway. The flavor is good, much better than any store bought carrot. The Oxheart carrots are great for eating and for showing off.