IPPS North American Virtual Summit

27 October 2020 - 29 October 2020


October 27-29, 2020

Eastern Region: October 27th, 9am - 12pm EST

Southern Region: October 28th, 9am - 12pm EST

Western Region: October 29th, 3 - 6pm EST

Southern Region Program 

Tips and Tricks for Propagating Difficult to Root Species

Dr. David Creech
Director SFA Gardens, Stephen F Austin State University

A lifetime of sticking a wide range of woody and herbaceous cuttings condensed into twenty minutes. Every batch of cuttings is a brand-new story and a myriad of variables influence successful rooting. Time of year, hormones (powder, solution, or gel), mist propagation, bottom heat, heated mist, substrate drainage, light (intensity and photoperiod) and the character of each cutting is a determinant. For difficult to root species, the best propagators are constantly experimenting to find the exactly right timing and protocol that leads to successful rooting. 

Dr. Dave Creech, Regent's Professor and Professor Emeritus, has been at Stephen F. Austin State University, Nacogdoches, Texas since September, 1978. Dr. Creech received his BS in Horticulture from Texas A and M University in 1970, a MS in Horticulture from Colorado State University in 1972, and he returned to TAMU and was awarded the PhD in 1978. Dr. Creech is semi-retired and currently directs SFA Gardens, a 68-acre on campus horticultural resource.

Designer Genes, Designer Redbuds: Twenty Years of Cercis Breeding

Dr. Dennis Werner
J.C. Raulston Distinguished Professor Emeritus
JC Raulston Arboretum, North Carolina State University

Dr. Werner will summarize the accomplishments made in the redbud breeding program over the past 20 years, review the most recent cultivar releases, and discuss the goals of the program moving forward. He will also discuss some of the fascinating mutations in redbud, and how they interact biologically to allow for the creation of new and novel forms.

Dennis was raised in York County, Pennsylvania. He was hired as Assistant Professor of Horticulture at NCSU in 1979 with responsibilities in teaching and plant breeding. He is now an Emeritus Professor, affiliated with the JC Raulston Arboretum, still continuing his efforts in redbud breeding. His redbud introductions are 'Ruby Falls', 'Merlot', 'Whitewater', 'Pink Pom Poms', Flame Thrower, and Golden Falls. His numerous cultivar releases in Buddleja focused on sterility, compact growth habit, and expansion of the color palette. In 2013 he was awarded the Luther Burbank Award for extraordinary achievement in plant breeding from the American Horticulture Society.

Tour of the Dirr Garden and Premier Introductions, Inc.: Best Performers and Those to Come

Dr. Michael A. Dirr
President, Chestnut Oak Farm and partner in Premier Introductions, Inc.

Legendary plantsman Dr. Michael Dirr shares insights on new plants from his home garden and breeding facility, Premier Introductions, Inc. This informative tour will inspire everyone to look for new varieties to grow in the seasons to come. 

Dr. Dirr earned a Bachelors and Masters of Science in Plant Physiology from Ohio State University and a Ph.D in Plant Physiology from the University of Massachusetts Amherst in 1972. Upon graduation from the University of Massachusetts, Dirr was an Assistant Professor of Ornamental Horticulture at the University of Illinois, Urbana, where he continued to work until 1978. He then became a Mercer Fellow at the Arnold Arboretum through 1979. In 1979, he became the Director of the University of Georgia Botanical Garden. In 1981, he returned to teach at the University of Georgia. Dr. Dirr's Georgia Plant Introduction Program has introduced over 40 new cultivars into the nursery trades. Dr. Dirr retired from the University of Georgia in October 2003 and is now active in research and new plant development.

Charlie Parkerson Virtual Student Research Competition

Winners Announced!

Virtual Nursery Tour #1

IPPS SR will be hosted in Athens, GA in 2022. Today we feature a few of the highlights from the area. 

Virtual Nursery Tour #2

The Mobile, AL preview tour will get everyone excited for our 2021 meeting! Thanks to videographer Jim Putnam of Horttube for creating these virtual nursery tour experiences for IPPS Southern Region.