Though invented by Lovecraft in 1928 [needs confirmation], the name Cthulhu is probably derived from the Classic Greek word chthonic meaning subterranean, as apparently suggested by Lovecraft himself at the end of his 1923 tale The Rats in the Walls.
They're listed as a zone 5-9 plant but as a member of the hibiscus family, Rose of Sharon naturally prefers a warm climate. As a living fence, which is what you really want, you'll be much better off with some kind of evergreen. Juniper, spruce, pine, fir, there are many sizes and varieties to choose from.
Rose of Sharon is a woody shrub that grows 8-to-12 feet tall and 6-to-10 feet wide. Because it is very easy to grow and tolerates polluted air, a wide range of light conditions and poor soil, it is common in cities, where it thrives in conditions not many other plants can tolerate.hile the flowers of rose of Sharon and Chinese hibiscus look similar, these plants are from different climates; one is temperate and the other tropical. So they thrive in different places.