|Virginia I. Lohr
Dept. of Horticulture
Washington State University
Pullman, Washington, 99164-6414, U.S.A.
231: Landscape Plant Materials I - Characteristics,
ecology, nomenclature, identification, selection, and use
of important woody and herbaceous landscape plant
232: Landscape Plant Materials II -
Characteristics, ecology, nomenclature, identification,
selection, and use of important woody and herbaceous
landscape plant species.
Hort 331: Landscape Plant Installation and Management - Principles and practices for installation and management of landscapes; specifications, site preparation, transplanting, growth control, problem diagnosis.
|| Impacts Of
Plants On People (also
called "human issues in horticulture"):
ecology and aesthetics in sustainable agricultural
landscapes: Lessons from the Palouse region of Washington,
Klein, L.R., W.G. Hendrix, V.I. Lohr, J.B. Kaytes, R.D. Sayler, M.E. Swanson, W.J. Elliot, and J.P. Reganold. 2015. Landscape and Urban Planning 134:195-209.
Buffers improve ecological and aesthetics of agricultural lands.
|Global patterns of diversity in the urban
forest: Is there evidence to support the 10/20/30 rule?
Kendal, D., C. Dobbs, and V.I. Lohr. 2014. Urban Forestry & Urban Greening 13(3):411-417.
Diversity in urban trees is still lacking; few cities world-wide have 10% or less of any single species of tree.
|Survey of wholesale production nurseries indicates
need for more education on the importance of plant species
Polakowski, N.R., V.I. Lohr, and T. Cerny-Koenig. 2011. Arboriculture & Urban Forestry 37:259-264.
Industry superficially understands the problem.
Full text PD
|What are the benefits of plants indoors and why do
we respond positively to them?
Lohr, V.I. 2010. Acta Horticulturae 881(2):675-682.
We are beginning to understand why people might respond positively to plants indoors and out.
Author text PDF
|Does It Matter What Color Tree You Plant?
Kaufman, A.J. and V.I. Lohr. 2008. Acta Horticulturae 790:179-184.
All canopy colors are calming, but medium green was the most calming.
|Responses to scenes with spreading, rounded and
conical tree forms.
Lohr, V.I. and C.H. Pearson-Mims. 2006. Environment & Behavior 38(5):667-688.
People feel happier looking at any tree rather than no tree, but feel happiest when it has a spreading form.
|Children's active and
passive interactions with plants and gardening influence
their attitudes and actions towards trees and the
environment as adults.
Lohr, V.I. and C.H. Pearson-Mims. 2005. HortTechnology 15:472-476.
Children who play around trees and who plant flowers appreciate the value of trees as adults.
|How urban residents rate
and rank the benefits and problems associated with trees
Lohr, V.I., C.H. Pearson-Mims, J. Tarnai, and D.A. Dillman. 2004. Journal of Arboriculture 30(1):28-36.
The general public, not just tree-lovers, rate the benefits of urban trees highly.
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|Physical discomfort may be
reduced in the presence of interior plants.
Lohr, V.I. and C.H. Pearson-Mims. 2000. HortTechnology 10(1):53-58.
People tolerate pain better when plants are around.
| Particulate matter
accumulation on horizontal surfaces in interiors:
Influence of foliage plants.
Lohr, V.I. and C.H. Pearson-Mims. 1996. Atmospheric Environment 30(14):2565-2568.
Indoor plants reduce dust!
| Interior plants may
improve worker productivity and reduce stress in a
Lohr, V.I., C.H. Pearson-Mims, and G.K. Goodwin. 1996. J. of Environmental Horticulture 14(2):97-100.
Indoor plants help people relax!
Full text PDF
| Landscape preferences
and stress responses of ethnically diverse adolescents.
Berge, B. and V.I. Lohr. 1994. In: M. Francis, P. Lindsey, and J. S. Rice. The healing dimension of people-plant relations: Proceedings of a research symposium, p. 101-113. The University of California, Davis, CA.
Teenagers like trees.
| Assessing and
influencing attitudes toward water-conserving landscapes.
Lohr, V.I. and L.H. Bummer. 1992. HortTechnology 2:253-256.
People are willing to save water in landscapes.
| Modifying a technical
course to meet baccalaureate objectives.
Lohr, V.I. 1989. HortScience 24:737-739.
Applied classes can be intellectually rigorous.
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Page updated March 4, 2015