Let’s grow carrot tops! One of the easiest plants for a young gardener to grow, carrot tops make pretty houseplants for a sunny window and their fern-like foliage is beautiful in an outdoor container garden. First off, a word of caution; when we say you can grow carrots from carrots, we mean the plant, not the root vegetable. The orange, kid-friendly vegetable is actually a taproot and once removed from the plant, it can’t regrow. You can grow carrots in water. Cut the top from a grocery store carrot. You’ll need about one inch of the root. Stick a toothpick into either side of the carrot stump and balance it on top of a small glass. Keep reading the instructions here.
SOURCE:http://www.gardenoholic.com/how-to-grow-carrots-from-carrot-tops/