Question

explain artificial propogation of hibiscus (plz give me long answer in simple english)

Answer 1

Artificial reproduction/propagation is the creation of new life by other than the natural means available to an organism.
The three common methods for the artificial propagation of plants are:
Cuttings,
Layering
Grafting
1/CUTTING-
A small part of a plant which is removed by making a cut with a sharp knife is called a 'cutting'. A cutting may be a piece of stem, root or even a leaf. While making a cut, care should be taken to see that there are some buds on it.
The plants like rose, Bougainvillea, Chrysanthemum, grapes, sugarcane, bananas, and cactus, etc. can be grown by means of cuttings.
2/LAYERING
In this method, a branch of the plant is pulled towards the ground and a part of it is covered with moist soil leaving the tip of the branch exposed above the ground. After some time, new roots develop from the part of the branch buried in the soil. The branch is then cut off from the parent plant. The part of the branch which has developed roots grows to become a new plant (just like the parent plant). 
The layering method is used for the propagation (or reproduction) of plants like : Jasmine, Strawberry, Raspberry, Lemon, Guava, Hibiscus (China rose), Bougainvillea and many slender ornamental plants.E.g.: Nerium
3/GRAFTING
Grafting is a method in which the cut stems of two different plants (one with roots and other without roots) are joined together in such a way that the two stems join and grow as a single plant. This new plant will have the characteristics of both the original plants