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.
General Considerations. Hair grows approximately Â½ inch per month, for a total of six inches in one year. This rate is an average across races. Asian hair grows slightly faster than this average, Caucasian hair grows near the average,and black hair trends to grow at or just below this average each month.any factors determine the length of time it takes for a person to grow out their hair and reach certain hair lengths. This article will try to offer some guidance for length planning. As you read, bear in mind that the time estimates listed for growing out the hair in this article are just that-estimates.