By 1978, the Arboretum had grown to approximately 85 acres with over 2000 species, varieties, or cultivars of trees and shrubs, with the oldest remaining trees - yellow poplar, northern catalpa, and European larch - dating from 1903<ref>John E. Ford, <i>Finding List and Guide to the Secrest Arboretum</i>, p.1.</ref>. Among the notable plantings in the collection are: | By 1978, the Arboretum had grown to approximately 85 acres with over 2000 species, varieties, or cultivars of trees and shrubs, with the oldest remaining trees - yellow poplar, northern catalpa, and European larch - dating from 1903<ref>John E. Ford, <i>Finding List and Guide to the Secrest Arboretum</i>, p.1.</ref>. Among the notable plantings in the collection are: |