Tree Picea sp. [Spruce] The conical or pyramidal form of Spruces makes them a valuable addition to the landscape.
Tree Pinus bungeana [Lacebark Pine] Excellent specimen tree for bark interest, showing bark color on 1.5-2" dia. branches. Branches may break under snow. Attacked by many pine-targeting insects, with perhaps the Zimmerman Moth, the Pine Shoot Moth, and the Bud Moth being the most significant threat.
Tree Pinus cembra [Swiss Stone Pine] A fine formal specimen with age. Too slow growing to be very versatile, unless one is willing to purchase a large specimen. Susceptible to Zimmerman Moth, Pine Shoot Moth, and Bud Moth.
Tree Pinus flexilis [Limber Pine] Large taproot makes it difficult to transplant once established. Generally low maintenance with few problems, but is susceptible to White Pine Blister Rust. Decaying needles acidify soil beneath (to about pH 4.5), which suppresses growth of other plant species.
Tree Pinus koraiensis [Korean Pine] Often confused with the Swiss Pine (Pinus cembra), the Korean Pine is a slow growing evergreen tree, native to eastern Asia. Pinus koraiensis is noted for its adaptability to many different environments and cold hardy. Its dark green needles have two white stomatal lines which gives the overall color of the needle a blue green. When young, the branching is tight and very pyramidal, which relaxes with age to a more loose pyramidal habit.
Tree Pinus parviflora [Japanese White Pine] The species exhibits good salt tolerance. Although subject to rusts, wood rots, nematodes, and sawflies, none are serious.
Tree Pinus ponderosa [Ponderosa Pine] Pinus ponderosa is a very tolerant tree, adaptable to a wide range of conditions, except for shade and poor drainage. Older trees often lack lower limbs. It is dominant in western North America, where it can reach up to 230 feet tall, and is an extremely important timber tree.
Tree Pseudolarix amabilis [Golden Larch] No serious diseases. Should be protected from too much wind.
Shrub Spiraea × bumalda [Bumald Spirea] Flowers heavily in June (on new growth) and then continues intermittently through August. Annual pruning results in better foliage and flower effect. Tolerant of widely different soils and exposures, but tends to do best in full sun with adequate moisture and a pH of 6.0-7.5. Avoid very wet sites.
Shrub Spiraea japonica [Japanese Spirea] Flowers heavily in June (on new growth) and then continues intermittently through August. Annual pruning results in better foliage and flower effect. Tolerant of widely different soils and exposures, but tends to do best in full sun with adequate moisture and a pH of 6.0-7.5. Avoid very wet sites.
