Grow in average, medium moisture, well-drained soils in full sun. Tolerates some light afternoon shade, particularly in hot summer climates.
Japanese red pine is perhaps the most common tree growing in Japan. It will soar to 100’ in the wild, but in cultivation is more likely to top out at 40-60’ tall. ‘Umbraculifera’ (also commonly called ‘Tanyosho’) is a slow-growing dwarf cultivar that is grown as either a small tree or shrub. As the cultivar name suggests, it is noted for its umbrella-like crown. It may reach 15’ tall after 30 years. The type of rootstock used may in large part determine the mature size of the plant. Some nurseries sell Pinus densiflora ‘Umbraculifera Nana’ as an even smaller dwarf cultivar that only grows to about 6’ tall. As with the species, ‘Umbraculifera’ is noted for its orange-red bark and abundant production of small seed cones. Often multi-trunked at the base, this plant features a broad-rounded shape, dense upright-spreading branching and an umbrella crown. Bright green needles (to 3-5” long) appear in bundles of two. Oval to oblong cones (to 2” long) are often plentiful. Needles may yellow in winter.
Healthy, well-maintained trees usually have few major problems. These plants may struggle in the St. Louis area where environmental conditions do not favor most conifers.
Foundations, small areas around the home. Also used for bonsai.