Hardwood or softwood which grows quicker?
Two of the quickest-growing trees are poplar and radiata pine,
which both reach market size in about 10 years. Poplar is a
hardwood (broadleaf) tree, radiata pine is a softwood (needle-leaf)
tree. One of the slowest-growing trees is California redwood, which
takes about 80 years to reach market size; it's a softwood.