Propagation by stem cuttings is a common method of asexual reproduction in plants, where a portion of the stem with at least one node and one or more leaves is cut from the parent plant and rooted to form a new individual plant. The new plant will have the same genetic makeup as the parent plant and will exhibit similar characteristics, making this method useful for maintaining desirable traits of a plant.

Bougainvillea, carnations, grapes, and cocoa are all plants that can be propagated by stem cuttings.

Bougainvillea, a popular ornamental plant, can be propagated by hardwood or softwood stem cuttings taken from the parent plant. Hardwood cuttings are taken during the dormant season, while softwood cuttings are taken from young, tender growth in the spring or summer.

Carnations, which are also popular ornamental plants, can be propagated by taking stem cuttings from the parent plant during the spring or summer. The cuttings are usually taken from the side shoots of the plant and should have at least two nodes and a few leaves.

Grapes, which are commonly grown for their fruit, can be propagated by taking dormant hardwood cuttings from the parent plant during the winter months. The cuttings should be at least 1/4 inch in diameter and have at least three nodes.

Cocoa, a tropical plant grown for its seeds, can be propagated by taking stem cuttings from the parent plant during the rainy season. The cuttings should be taken from young, tender growth and should have at least two nodes and a few leaves.