Answer: There's no reason that you cannot grow carrots in planter boxes or containers. In fact, you'll probably have a better crop because you can control the type of soil you use. You'll need deep containers (10-12" deep) and some fresh potting soil. Carrots won't grow in the heat of summer so you'll want to plant your seeds in October so the veggies can grow during the coolest months of the year. In addition to planting carrot seeds, you can also plant radishes in the same container. The radishes will be ready to harvest just as the carrots are beginning to grow large enough to crowd them out. So, while you're a little too late to plant carrots this year, you can practice using your containers by growing spinach or leaf lettuces if you plant now, or cherry tomatoes if you want to plant in March or April.
Best wishes with your containerized veggie garden!
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