Dianthus barbatus (Sweet William) is a species of Dianthus native to southern Europe and parts of Asia which has become a popular ornamental garden plant. It is a herbaceous biennial or short-lived perennial plant growing to 13â92 cm tall, with flowers in a dense cluster of up to 30 at the top of the stems.
The hair on your head grows about six inches per year on average, or about half an inch per month. Each hair grows for about two to six years then stops and enters the telogen phase, during which it is gradually shed. On average, you lose about 50 to 100 hairs per day. Often, the growth cycle of the follicle starts over and a new hair begins to grow in after one is shed.
Hair grows about half an inch a month (faster in the summer than the winter). This means that your hair grows as average six inches a year at the rate of about 1/60th of an inch a day. Unfortunately your genes govern the rate of growth, so there's nothing you can do to speed it up.