1)  Acer tegmentosum  ‘Joe Witt’        Stripebark Maple A small- to medium-size tree with distinct striped patterns along the bark and branches Named for a former Washington Park Arboretum curator Located in the Joe Witt Winter Garden 2)  Berberis x media  ‘Arthur Menzies’        Hybrid Mahonia Multi-stemmed shrub with prominent winter flowers Loved by hummingbirds as a source of winter nectar Located in the Joe Witt Winter Garden 3)  Ceanothus  ‘Puget Blue’        California Lilac A fast growing, medium-sized shrub Known for small dark, evergreen leaves and purplish-blue late spring flower Located along the fence in the Graham Visitors Center’s parking lot 4)  Magnolia x kewensis  ‘Wada’s Memory’        Hybrid Magnolia Selected from a group of seedlings from nurseryman, Koichiro Wada Known for large and abundant spring flowers Two specimens flank Arboretum Drive near the Hydrangea Collection 5)  Nothofagus antarctica  ‘Puget Pillar’        Southern Beech A medium-sized deciduous tree native to Argentina and Chile Known for a somewhat fastigiate growth habit Located along the shore near Duck Bay 

1)  Acer triflorum        Three Flower Maple A small, slow-growing deciduous tree 20’ to 45’ where it is native in Manchuria and Korea.  An excellent landscape tree boasting light grey vertically-furrowed bark and vivid red and orange fall color.  The name refers to its flowers, which are borne in clusters of three. Discovered by noted plant explorer, Ernest H. Wilson in 1917. 

1)  Camellia japonica      ‘Nina Avery’ Due to this year’s mild winter thus far, many plants here have begun flowering much earlier than normal, and Camellias are certainly no exception. Many specimens can be seen in bloom along Arboretum Drive near Rhododendron Glen. 2)  Camellia x williamsii      ‘Mary Christian’ Soon after C. saluenensis began to flower it was crossed with C. japonica, notably by J. 

Donald Culross Peattie in the Washington Park Arboretum Staff horticulturist, Ryan Garrison recently listened to an audio version of Donald Culross Peattie’s book, “A Natural History of North American Trees.” He very much enjoyed its mix of science and literary art, and would like to share a few gems about trees in the collection with you. 1)  Carya ovata – Shellbark or Scalybark Hickory “To everyone with a feeling for things American, and for American history, the Shagbark seems like a symbol of the pioneer age, with its hard sinewy limbs and rude, shaggy coat, like the pioneer himself in fringed deerskin hunting shirt. 

Witt Winter Garden 1)  Cornus sanguinea ‘Midwinter Fire’         Bloodtwig Dogwood Young stems of this cultivar are orange-yellow with the sunny side turning carmine red. Stem color of species is gray to purple, while the color of C.s. ‘Midwinter Fire’ is yellow-green in summer changing to winter colors rapidly at leaf drop in fall. 2)  Hamamelis x intermedia ‘Pallida’             Witch Hazel This hybrid of H. 

“Piercing, sucking and galling!” 1)  Mites (on Sasa Bamboo and Skimmia) Stippling and yellowing of leaves are often indicative of the presence of mites. Feed by piercing underside of leaves and sucking chlorophyll out decreasing photosynthesis, reducing plant vigor and compromising the appearance. Mites are not insects; they are arachnids. 2)  Galls (on Willow and Rose) Abnormal plant growths caused by various organisms (insects, mites, fungi, etc.) Galls are formed by increased production of normal plant hormones as response to feeding, egg-laying or disease infiltration and are often not harmful to the plant. 

1)    Araucaria araucana      (Monkey Puzzle) Native to Chile, no other conifer quite like it! Seeds are used to make an alcoholic ceremonial drink called mudai. 2)   Picea glauca      (White Spruce) Native to northern temperate forests of North America. Captain Cook made a spruce beer, possibly curing his crew from scurvy. 3)   Pinus cembra      (Swiss Stone Pine) Native to Alps of Central Europe. 

  1)    Callicarpa bodinieri var. giraldii  ‘Profusion’  (Beautyberry) Native to western China. Ornamental purple berries on display in autumn months. Specimen located north of the Wilcox Bridge by the parking lot.   2)    Gaultheria mucronata    ‘Rubra’ Native to southern Chile. Formerly known as Pernettya, this particular variety has carmine pink berries. Specimen is located in the Chilean Gateway Garden. 3)   Grevillea victoriae    ‘Marshall Olbricht’ Native to Australia. 

1)   Euonymus hamiltonianus subsp. sieboldiana                      (Siebold’s  Euonymus) Native to the eastern Himalaya 1 Ornamental seed pods on display in autumn months 2 Specimen located in the Spindle Tree Collection   2)   Illicium henryi      (Henry Anise Tree) Native to western China 1 Red summer flowers turn to star-shaped fruits in autumn Specimen located along Upper Trail near the Asiatic Maple Collection 3)   Lithocarpus henryi      (Longleaf Chinquapin) Native to central China 1 Notable for “laurel-like, narrow, glossy leaves” 2 Specimen located along the Lower Trail near the Sino-Himalayan Hillside 4)   Osmanthus yunnanensis      (Chinese Osmanthus) Native to southern China 1 “Less cold-hardy” than other Osmanthus species in Seattle 2 Specimen located in the Sino-Himalayan Hillside 5)   Polyspora kwangsiensis      (Fried Egg Plant) Relative of the Camellia and Stewartia 1 Camellia-like flowers appear in autumn 1 Specimen located along Upper Trail near the Camellia Collection   1 Bean, W. 

                    1)   Franklinia alatamaha Native to the Alatamaha River, Georgia, and discovered in the late 18th. Genus contains just one species, and has long been extinct in the wild. Today’s plants all descend, it is believed, from those cultivated in Philadelphia under the name chosen by William Bartram in honor of Benjamin Franklin.