Layering
Layering is a means of plant propagation in which a portion of an aerial stem grows roots while still attached to the parent plant and then detaches as an independent plant. Layering has evolved as a common means of vegetative propagation of numerous species in natural environments. Layering is also utilized by horticulturists to propagate desirable plants.
Natural layering typically occurs when a branch touches the ground, whereupon it produces adventitious roots. At a later stage the connection with the parent plant is severed and a new plant is produced as a result.
The horticultural layering process typically involves wounding the target region to expose the inner stem and optionally applying rooting compounds. In ground layering, the stem is bent down and the target region buried in the soil. This is done in plant nurseries in imitation of natural layering by many plants such as brambles which bow over and touch the tip on the ground, at which point it grows roots and, when separated, can continue as a separate plant. In either case, the rooting process may take from several weeks to a year.
Source: en.wikipedia.org/wiki/Layering 22.03.2012
Young Sprout
Each stadium has its own beauty:
wether young sprout with gentle colours and forms, which only leads one to suspect the lateron look,
or completely unfolded leaves in deep green,
or coloured autumn foliage, which firstly is ornament, then cover for microorganisms and plants and at last plant nutrient for new growth.
