Sciadopitys verticillata / Umbrella Pine
Mature Size: 25-30ft height, 15-20ft spread; up to 90ft high in native Japan
Habitat: well-drained soils in full sun
Leaf Color: dark green needles
Flower color/Bloom time: non-flowering
A mature Umbrella Pine is incredibly strong and can support a large treehouse structure. The perpendicularity of the branches relative to the tall, central trunk makes a large structure possible. Umbrella Pines are known for being stiff and sturdy, which is good for supporting a structure. However, this can be concerning in areas of high winds and storms, as the tree may be less likely to resist or absorb strong winds in lateral directions. A potential issue in constructing a large structure on the Umbrella Pine is that in maturity, there are generally few lower branches and so access to the upper part of the tree would be challenging.
American Conifer Society https://conifersociety.org/conifers/sciadopitys-verticillata/
Plants for a Future https://pfaf.org/user/Plant.aspx?LatinName=Sciadopitys+verticillata
North Carolina Plant Toolbox https://plants.ces.ncsu.edu/plants/sciadopitys-verticillata/
Missouri Botanical Garden http://www.missouribotanicalgarden.org/PlantFinder/PlantFinderDetails.aspx?kempercode=a167