Pinus thunbergii (common name Japanese black pine) is native to Japan and Korea. It is a popular bonsai subject in Japan and the Western world. I did try Pinus thunbergii many years ago. They all died of neglect in poor soil condition. I am determined to try again starting with a couple of relatively common cultivars, and hope they fare better this time. It is probably the most ornamental dark green needle pine in my garden.
Pinus thunbergii ‘Kotobuki’
I am not that keen on its tight upright habit, but I do like the dark green colour. I am hoping to train it to show more ‘open’ structure with time. It seems to be suffering from some die back disease; probably will not survive through more than a couple of years.
Pinus thunbergii ‘Shirome Janome’
This is supposed to be a ‘variegated’ thunbergii, but the variegation is minimal.
Pinus thunbergii ‘Thunderhead’
This is a popular Pinus thunbergii cultivar for good reason. I t can be trained to have good artistic structure for garden design purposes; might take some time.