Lecture Series

The Vollmer Center
Cylburn Arboretum
4915 Greenspring Ave.
Baltimore, MD.21209

Members are required to show a current MEMBERSHIP CARD for free admission to lectures
Guest of members also receive free admission
Admission for non-member is $10
For more information call:410-821-5561
E-mail Programs





Vincent Simeone
"The Ever-changing and Exciting World of Hydrangeas."
Hydrangeas are one of the most popular and beloved garden plants in the world. With so many new species and varieties now being introduced into the horticultural trade, gardeners have unlimited possibilities. While these possibilities are enough to make the average person crazy, a crafty gardener can illuminate the landscape with a wide variety of foliage textures and colors as well as flower types and colors. This lecture will provide a diverse selection of hydrangeas to enhance the garden. Specific information on cultural requirements, pruning and landscape use of hydrangeas will also be discussed.

Vincent Simeone is a horticulturist, garden writer, teacher and lecturer. He is the Director of Planting Fields Arboretum State Historic Park in New York where he has helped to coordinate large horticultural and educational symposia and special events. Vincent is an expert in woody plant identification, culture and use. He is an authority on selection of superior woody varieties. He is a prolific author and has written magazine and newspaper articles as well as several books.







OCTOBER 14, 2014


ANNUAL PLANT AND SEED SWAP - For members and their guest
Starts 6:30 and ends at 7:15 p.m.
This is the popular "one for one" swap before the October Lecture.
Take your plants and seed packets - marked with botanical name - to the front of the Vollmer Center then look for addtions to your own garden.

Emma Seniuk

"Dixter Days"
Emma is currently the cut flower and vegetable gardener at Chanticleer in Wayne Pennsylvania.
"Like most gardeners, I’ve loved plants since I was a child.  Over the years I have worked at a variety of jobs- nurseries, landscaping, beekeeping, helping to manage a Christmas tree farm but once I was introduced to public horticulture I was drawn in, hook, line and sinker.  I worked at Mt. Cuba Center as a seasonal, Longwood as a student, volunteered at Chanticleer over the years, had a year and half long studentship at Great Dixter and now am fortunate enough to be full time at Chanticleer." 

Great Dixter House and Gardens - East Sussex, England  November 2011 to November 2012
North American Christopher Lloyd Scholar                                           
Developed and planted section in Orchard Garden in partnership with 2011 Christopher Lloyd Scholar, overseen by Fergus Garrett.

NOVEMBER 11, 2014

sponsored by

Ben Flanner

"The Many Hats of Rooftop Farming"
Ben Flanner is the head farmer, CEO, and co-founder of Brooklyn Grange rooftop Farm, based in New York City. A pioneering urban farm operation, the business produces vegetables, herbs, and honey on over 2 ½ acres of intensive green roofs, and sells its produce via restaurants, farmer’s markets, and CSAs. Brooklyn Grange is widely recognized as a world leader in urban agriculture, with an unwavering drive to develop the industry with an exceptional green and community minded business. Prior to founding the Brooklyn Grange, Ben co-founded and managed the Eagle Street Rooftop farm.
He has a BS degree in Industrial Engineering from the University of Wisconsin, and prior experience in management consulting and marketing. 

The Brooklyn Grange received the LICBDC Green Business Award in 2010, the Green Roofs for Healthy Cities Award of Excellence in 2011, and Queens Community Business Award from Mayor Bloomberg’s office in 2012.  Ben was born and raised in Milwaukee, Wisconsin and currently resides in Brooklyn, New York.

Imagine two acres of rooftop gardens in Brooklyn, N.Y. producing vegetables.  This successful business venture and urban adventure was co-founded by Ben Flanner, who will share the story of the world’s largest rooftop farm—Brooklyn Grange. Ben Flanner /vimeo

DECEMBER 9, 2014


sponsored by

Tony S. Aiello   

"Plant Explorations in a Changing World: Collecting in the 21st Century"

A veteran of collecting in China, Europe and the southern Appalachian mountains, Aiello discusses the process of exploration and its potential to address biological changes in our landscapes. He profiles some of the promising plants found over the past 30 years.

The Gayle E. Maloney Director of Horticulture and Curator
Tony has served as Director of Horticulture and Curator of the Living Collection at the Morris Arboretum of the University of Pennsylvania since 1999.  He is responsible for managing the Morris Arboretum’s historic gardens and living plant collections.  Tony has overseen restoration of the Arboretum’s historic landscape features and participated in the completion of significant capital projects.  As part of his curatorial duties he has participated in plant collecting trips to the Southern Appalachian Mountains, China, and Europe.  Tony received his B.S. in Biology from Cornell University and M.S. in Horticulture from Purdue University.  Prior to coming to the Morris, Tony was Curator of Woody Plants at the Chicago Botanic Garden, worked in the horticulture department at Iowa State University, and was the Garden Club of America’s Martin McLaren Fellow in 1991-92.  Since 2000, he has chaired the North America China Plant Exploration Consortium (NACPEC), and has been involved with several committees of the American Public Gardens Association, including the Acer and Quercus curatorial groups and the Plant Taxonomy and Nomenclature Section.  His interests include trees and shrubs from the northern temperate regions, and in particular maples, flowering cherries, magnolias, hollies, and witchhazels.  His other botanical interests include the history of horticulture and economic botany. 


January Plant Forum Sunday, January 25, 2015, - 1-3 p.m. Vollmer Center

Perennial Plant Association & HSM Winter Seminar, Saturday, Feb. 28, 2015 8:45 to 4 p.m.


MARCH 10, 2015

sponsored by:


Bill Weaver
"Heirloom Vegetables and Cooking".
Food historian William Woys Weaver has been gardening with heirloom varieties since he was a boy. But finding his grandfather’s rare seed collection in a deep freeze may have been the critical point in determining his unique career path. Today, Weaver’s collection includes over 4,000 varieties of flowers, fruits and vegetables.
Bill is an expert on how to grow and cook with heirloom varieties.

APRIL 14, 2015


sponsored by:



Dr. Michael Raupp, Ph.D - The Bug Guy

"What a Warming World Means to Insects"

Professor Mike Raupp will explore evidence of climate change affecting insects. He will show how warmer temperatures can alter ranges of pests, seasonal phenology of insects and mites, and interactions among plants, herbivores, and their natural enemies. Special emphasis will be placed on urban heat islands.

Raupp is a professor and extension specialist at the University of Maryland at College Park and Science Channel Expert. As an internationally recognized expert, Raupp has contributed to more than 200 publications and has made over 1,000 presentations on the ecology and management of insects and mites. He frequently appears on major television networks and has been featured on The Science Channel, National Geographic, Dr. Oz and Jay Leno. His Bug of the Week website, www.bugoftheweek.com, an information source on the natural history of insects, has received more than one million visits since its inception. Mike has received a dozen regional or national awards for excellence inextension programming and media communications including the Secretary of Agriculture's Award for Environmental Protection. His most recent book 26 Things that Bug Me introduces youngsters to the wonders of insects and natural history using pictures and rhymes while Managing Insect and Mites on Woody Landscape Plants is a standard for the arboricultural industry.

MAY 12, 2015

Gordon Hayward

sponsored by:

Gordon Hayward
"The Inevitable Garden"

Award winning author and landscape designer Gordon Hayward will distill some of the lessons gleaned during his thirty-year career of designing gardens. By observing the land, and by working with the client to balance mind and emotion, we can create compelling residential landscapes that hold these complex relationships in balance—design that feels inevitable.

Gordon Hayward has been designing gardens professionally from his home in southern Vermont since 1985, with particular emphasis on gardens in the Northeast. He is also a nationally recognized garden writer and lecturer. He has written and lectured for Horticulture Magazine, and has been a contributing editor at Fine Gardening Magazine, and also for Organic Gardening Magazine. He is the author of eleven books on garden design, two of which have won national awards. 

For nearly 30 years, Hayward and his wife Mary have been creating a 1.5- acre garden around their 240-year-old farmhouse in southern Vermont. For the past 20 years, the Hayward’s have also gardened at their cottage in the village of Blockley in the North Cotswold of England – where Mary is from.

Book signing: "Your House, Your Garden"


Bring all your shovels, rakes, wheelbarrows, pruner, buckets, gloves, stakes, trowels,that you don't use anymore!
Bring any seeds or plants that you are replacing or getting rid of!
Your unwanted tools and plants can make all the difference for a Baltimore City community garden.

Sunday, June7, 2015
10 a.m. to 4 p.m.

Annual Garden Tour
The 2015 tour will feature gardens in northern Baltimore County: Phoenix, Jarrettsville and Monkton.