Open AccessEnvironmental Adaptation and Ornamental Display of Cornus Florida Ecotypes
Author(s) -
R. C. Heatley,
J. James Kielbaso,
G. S. Howell
Publication year - 1994
Publication title -
arboriculture and urban forestry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.222
H-Index - 47
eISSN - 2155-0778
pISSN - 1935-5297
DOI - 10.48044/jauf.1994.054
Subject(s) - hardiness (plants) , ecotype , ornamental plant , biology , adaptation (eye) , horticulture , geography , botany , cultivar , neuroscience
A flowering dogwood (Cornus florida) rangewide provenance study was begun in 1972 in Michigan. One block was planted on an open hilltop and another under the shade of another plantation. Trees from 18 states were rated for fall color; from 15 states for cold hardiness, flowering, and presence of stem cankers. Northern seed sources were hardier when grown in the open than under shade. Fall color was best for northern sources grown in the open; shaded trees developed minimal color. Use of northern seed sources should provide hardier trees with better fall color displays and better flowering in northern landscapes.