Paulowina tree or lumber
This tree is used for many things. It is a very fast growers. As little as 5 years for harvest. 6 meters a year. 10 years for full growth.
There are new hybrid varieties that are producing spectacular results. One Variety is invasive and needs to be avoided. The best seems to be the enormous Variety
Information on invasive species of Paulownia
There are a few groups supporting farmers and landowners to get started growing this tree. They also give free trees, guarantee a pre arranged sales program and harvest.
The best thing is plant this tree once and you get 7 to 8 growth cycles. The tree regrow from the roots after every cut. That's 70 years of Family wealth.
The Paulowina tree is also fire resistant qualities make it great for fire prone areas like California.
This group world tree has a great program to check out.
World tree Farmer support program
As a forestry crop, Paulownia are exacting in their requirements, performing well only in very well draining soil, with summer rainfall or availability of irrigation water.[citation needed] Paulownia is extremely fast growing, increasing in height by up to 6 metres (20 ft) in one year when young. Some species of plantation Paulownia can be harvested for sawn timber in as little as five years. Once the trees are harvested, they regenerate from their existing root systems, earning them the name of the "Phoenix tree"[citation needed] (that name is alternatively attributed to the belief that it is the only tree within which the phoenix will roost.