Answer: These plants grow to about 8 feet tall and 4 to 5 feet wide at maturity and somewhat pyramidal, but like other I. crenata types they withstand pruning nicely. On the negative side, they are quite slow growing, perhaps slower than you would like if you are looking for quick privacy. For long term plant health, I like to see hedge plants set out far enough apart to reach their mature size without undue crowding, close enough to touch at the tips or a maybe little closer than that for more even density. Your local professional nursery staff and/or county extension may have additional thoughts and suggestions with regard to establishing a hedge in the site and particular growing conditions you have in mind, as well.
Q&A Library Searching Tips