It’s possible to dread hair as short as only 3″ long, but they would be some crazy, spikey dreads! A length of at least 5-6″ is preferable for putting in new dreads. If your hair IS still on the short side, but you just CAN’T wait for your hair to grow out, it is possible to put in extensions on hair as short as 3″. Knots are less likely to migrate out the ends if your natural hair is at least 5-6″, so although 3″ is the minimum we do STRONGLY recommend waiting until you have at least 5″ of growth for us to work with, especially if you are NOT adding extensions!