Evaluation of Container Plantings in an Urban Environment

Abstract

Two shrubs, Viburnum opulus 'Nanum' and Juniperus chinensis procumbens, and three mulch treatments, shredded bark, hardwood chunk bark and a control were evaluated for use in above ground plantings on city streets. Data taken included soil temperatures, soil moisture levels, plant growth, winter kill and subjective evaluations of plant appearances. Differences were found in spring and fall temperatures of mulched and unmulched treatments. The bare soil cooled faster in the fall and warmed slower in the spring than the mulched soil. Both shrubs performed best with hardwood mulch. Junipers appeared to be the better plant selection in this study.