Skimmia japonica

Source: OSU Department of Horticulture

Botanical Name: Skimmia japonica
Common Name: Japanese Skimmia
Family: Rutaceae
Type of Plant: Evergreen shrub
Habit: Dense, rounded to haystack-shaped, evergreen shrub of rather gentle proportions.
Growth Rate: Slow
10-Year Height: < 6'
Mature Height: 2' - 3'
Leaves: Alternate, simple, evergreen, crowded at end of branches and appearing whorled, elliptic-oblong to oblong-obovate, bright green upon emerging, finally dark green above, entire, glabrous, peppery citrus smell when bruised. Petiole short, glabrous, reddish purple.
Flowers: Dioecious. Glossy maroon-red in bud, creamy white when open, weakly fragrant, borne in 2-3" long upright panicles. March-April. Flowers on male plants larger and more fragrant.
Fruit: Only on female plant, bright red, globose drupe that ripens in October and persists into the following spring. Fruit is borne at end of shoots in panicles. About 1 male to 6 males is necessary for good fruit set.
Buds/New Growth: Imbricate, covered in with red scales, glabrous.
Stem/Bark: Stem stout, green with an overcast of reddish purple, glabrous, spicy fragrant when bruised. Pith: ample, excavated, green.
Culture: Part shade to shade.
Pruning: 
Pests/Diseases: Skimmia mites.
Landscape Uses: Shade garden.
Additional Information: 

Pyrus calleryana

Botanical Name: Pyrus calleryana
Common Name: Callery Pear
Family:Rosaceae
Type of Plant: Deciduous tree
Habit: Fastigiated
Growth Rate: Fast
10-Year Height: > 10', > 20'
Mature Height: 30-40'
Leaves: Alternate, simple, leathery, and lustrous lime green. Foliage can develop a spectacular reddish-purple in fall.
Flowers: White, borne in cymes, 5 petals. March-April.
Fruit: Small rounded pome. 1/2" or less across, russet-dotted, hidden by foliage. Marble-sized, drag olive green.
Buds/New Growth: Shaggy, imbricate, terminal buds.
Stem/Bark: Trunk bark is slightly furrowed and grayish brown at maturity. Lenticels. Thorns. Lots of spurs.
Culture: Sun.
Pruning: 
Pests/Diseases: 
Landscape Uses: Good street tree.
Additional Information: 

Prunus cerasifera 'Thundercloud'

Botanical Name: Prunus cerasifera 'Thundercloud'
Common Name: Thundercloud Plum
Family: Rosaceae
Type of Plant: Deciduous tree
Habit: Shrubby, twiggy, rounded
Growth Rate:  fast
10-Year Height: > 10'
Mature Height: 20-30'
Leaves: Alternate, simple, ovate, elliptic or obovate, apex pointed, coppery purple, serrated margins.
Flowers: Single, pink, flowers before leaves, fragrant, perfect, solitary. 5 petals. March-April
Fruit: Edible. Size of ping-pong ball.
Buds/New Growth: 
Stem/Bark: No lenticels. Charcoal black bark.
Culture: Sun.
Pruning: After flowering to keep tree vigorous. In February and June, prune watersprouts.
Pests/Diseases: 
Landscape Uses: Accent tree. Street tree.
Additional Information: Short-lived: 40-60 years.