DENDROLOGY

Detailed explanation-1: -Yes, for most species, the heartwood is the strongest part of the tree. It is densely compressed xylem vascular tissue that often has a darker color than the porous sapwood ring surrounding the heartwood.

Detailed explanation-2: -The heartwood is located at the inner part (center) of the wood. It is called as such because of being located at the center of the wood. Some trees, though, do not form heartwood but only sapwood. Compared with sapwood, the heartwood is darker, harder, and rather resistant to decay.

Detailed explanation-3: -Heartwood is formed from old, “retired” sapwood and becomes the strong spine of the tree. Heartwood is preferred for woodworking, as it is far less susceptible to fungus and contains much less moisture than sapwood, which means it will shrink less when it dries.