H
Mrs. Harrie Bonner and Dr. A. J. Haagen-Smit
Arie Haagen-Smit
Charles A. Hallberg
H. R. Halsey
W. S. Stewart, F. T. Ching, D. D. Halsey
Effects of Gibberellic Acid Sprays on Thompson Seedless Grapes
Published Autumn 1957
Frank Halvorsen
Burks L. Hamner
George P. Hanson
Man and Air – Threats to Prairie Survival
Published December 1970
Relative Air Pollution Sensitivity of Some Los Angeles Arboretum Plants
Published December 1972
Becca Hanson
Scott E. Haselton
William Hawkinson
Junipers for All Purposes in Southern California
Published September 1972
Boysie E. Day and Chester L. Hemstreet
Selective Weed Control in Dichondra Turf with CMU
Published Autumn 1956
James E. Henrich
A Passion for Plumeria: Arturo Martinez Shares His Beloved Plants
Published Summer/Fall 2011
The Majestic Oaks: a Program of Conservation and Preservation
Published Winter/Spring 2012
Landscape Considerations
Published Winter/Spring 2012
The Future Arboretum Plant Palette: Where Do We Go From Here?
Published Summer/Fall 2012
Fruit Trees in the Garden For All Seasons
Published Winter/Spring 2013
Significant Plant Collections of the Arboretum
Arboretum: Newsletter and Calendar
Published Fall 2009
William Hertrich
Australian Counterpart of the American Agave and Furcraea
Published Autumn 1954
Genus Pereskia (Tribe 1. Pereskieae) of the Family Cactaceae
Published Winter 1956
Ernest Hetherington
The Culture of Cymbidiums for Southern California Gardens
Published March 1969
Glenn H. Hiatt
Plant Collecting Expedition to Central and South America
Published Autumn 1964
Donald R. Hodel
Kaffirboom! An up-close and personal look at the official tree of Los Angeles
Los Angeles County Arboretum & Botanic Garden News
Published August, September, October 2003
Noted Palm Collection Entrusted to Descanso Gardens
Published Fall 1990
Exceptional Trees of Los Angeles, Ten Years After
Published Winter 1997/1998
Ted Holderness
S. Reynolds Hole
Leo Holguin
The Development of Semi-Albas (White Colored Lip)
Published Winter 1966
Nelson Holmes
Caroline Hoover
Alfred C. Hottes
Allen Howard
Computers Help in Tackling Environmental Problems
Published Fall 1990
Reorganizing Plant Collections Could Enhance Educational Value
Published Winter 1990
Botanists Trek Through Three Deserts: Prelude to San Juan River Rafting
Published Summer 1991