Melanocytes Cells synthesizing the pigment melanin. These cells are located in deep layers of epidermis and contain branching processes that contact all keratinocytes in basal epidermal layer. The melanin formed in melanosomes are transported to branching processes, shed, and engulfed by keratinocytes.
The collard is a cool season crop that should be grown during early spring or fall. The mature plant will withstand frosts and light to medium freezes. It is one of the most popular garden vegetables in the south and is rapidly becoming a delicacy in northern states as well. Collards provide a good source of vitamins and minerals.
There are four general ways to produce collards. 1  Grow plants and set transplants in early spring, and harvest the whole plant 50 to 60 days later.  Grow plants and transplant in early spring, and market cropped leaves in late spring, and carry plants over to fall when the entire plant is harvested.