Dirr's Tree and Shrub Finder
by Timber Press, Inc.
Based on Michael A. Dirr’s classic work, The Manual of Woody Landscape Plants, Dirr's Tree and Shrub Finder covers 1670 species and 7800 cultivars, with 7600 high-quality plant images. The plant database is searchable by 72 criteria, including hardiness zones, water and light requirements, growth characteristics, flowers, fruits, and fall colors.
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