Nursery Views - Spring 2015

Page 1

VOL. 45/NO. 1

Spring 2015

The Official Publication of The Kentucky Nursery and Landscape Association

Smaller Selections of

Oakleaf Hydrangea

Boxwood Blight

on the Radar for Nursery Growers Plus, Highlights from KNLA’s

Annual Business Meeting and the Kentucky Landscape Industries Winter Conference & Expo

VOL. 45/NO. 1

Spring 2015


Top Features


ighlights from KNLA’s H Annual Business Meeting and the Kentucky Landscape Industries Winter Conference & Expo, Plus KNLA’s New Summer Retreat Leadership Training & Marketplace, and New Spring Training and Showplace

10 Plant Profile

Smaller Selections of Oakleaf Hydrangea

12 Disease alert

oxwood Blight on the B Radar for Nursery Growers

13 News from the kda


ost-Share Grants Can C Cut Business Expenses and Expand Your Options!

On the cover: Hydrangea quercifolia Little Honey.™ Photo by Paul Cappiello.

Nurs ery Views • Spri ng 2015


4 From the President, Martin Korfhage 6 News from KNLA 7 Welcome, New KNLA Members 14 Index of Advertisers

The Kentucky Nursery and Landscape Association serves its members in the industry through education, promotion and representation. The statements and opinions expressed herein are those of the individual authors and do not necessarily represent the views of the association, its staff, or its board of directors, Nursery Views, or its editors. Likewise, the appearance of advertisers, or their identification as Kentucky Nursery and Landscape Association members, does not constitute an endorsement of the products or services featured in this, past or subsequent issues of this bi-annual publication. Copyright ©2015 by the Kentucky Nursery and Landscape Association. Nursery Views is published bi-annually. Subscriptions are complimentary to members of the Kentucky Nursery and Landscape Association. We are not responsible for unsolicited freelance manuscripts and photographs. Contact the managing editor for contribution information. Advertising: For display and classified advertising rates and insertions, please contact Leading Edge Communications, LLC, 206 Bridge Street, Franklin, TN 37064, (615) 790-3718, Fax (615) 794-4524.


The official publication of the Kentucky Nursery and Landscape Association

P.O. Box 6827 l Frankfort, KY 40602-6827 502-320-1488 Email: • KNLA Executive Director and Nursery Views Editor Betsie Aldridge Taylor P.O. Box 6827 • Frankfort, KY 40602-6827 Tel: 502-320-3733 Email: KNLA OFFICERS President Martin Korfhage Clinton Korfhage Nursery, Inc. 1823 Heaton Rd. • Louisville, KY 40216 Tel: 502-448-1544 • Fax: 502-447-1931 Vice President Kim Fritz Village Green Wholesale Nursery 4251 Bloomfield Rd. • Springfield, KY 40069 Tel: 502-460-0764 • Fax: 859-336-9010 Past President ToM WEEKS Wilson Nurseries P.O. Box 4009 • Frankfort, KY 40604-4009 Tel: 502-223-7735 • Fax: 502-223-3159

12 Published by Leading Edge Communications, LLC

206 Bridge Street l Franklin, TN 37064 615-790-3718 l Fax: 615-794-4525 Email:

Directors Eric Garris (2017) Bernheim Arboretum & Research Forest P.O. Box 130, Hwy. 245 • Clermont, KY 40110 Tel: 502-955-8512 • Fax: 502-955-4039 Brent grunfeld (2015) Monrovia 7504 Knight Lane • Fairview, TN 37062 Tel: 615-584-0116 • Fax: 615-266-2612 Wes King (2016) King’s Gardens 4560 Nicholasville Road • Lexington, KY 40515 Tel: 859-272-7077 • Fax: 859-272-4137 Jeff moore (2016) Signature Landscapes, LLC 1084 Baker Lane • Nicholasville, KY 40356 Tel: 859-887-2735 • Fax: 859-887-2736 Michael Mueller (2015) Inside Out Design, LLC 100 Old Georgetown Road • Frankfort, KY 40601 Tel: 502-695-7020 • Fax: 502-695-7021

SUZETTE WHITE (2015) Nature by Design 1819 Circleview Drive • LaGrange, KY 40031 Tel: 502-222-4501 • Fax: 502-222-4501 Margie witt (2017) Ammon Wholesale Nursery, Inc. 6089 Camp Ernst Road • Burlington, KY 41005 Tel: 859-586-6146 • Fax: 859-586-6183 EDUCATIONAL ADVISORS Dr. Winston Dunwell UK Research & Education Center P.O. Box 469 • Princeton, KY 42445 Tel: 270-365-7541, ext. 209 Fax: 270-365-2667 Dr. Dewayne ingram University of Kentucky, Horticulture Dept. N-308F Agri. Sci. Center • Lexington, KY 40546 Tel: 859-257-8903 • Fax: 859-257-2859 Dr. Robert (Bob) E. McNiel (Emeritus) Highland Moor 226 Shady Lane • Midway, KY 40347 Tel: 859-509-2719

From the President l Martin Korfhage

KNLA Announces

Two New Events!

Nurs ery Views • Spri ng 2015


ello! I hope everyone is having a busy and profitable season. It was so nice to see so many of you this past winter at our education conference and expo! We are excited to announce some significant changes that will take place with our schedule of events this year. Our board, exhibitors, and attendees have realized that real changes need to take place for our main trade show, previously held in the winter, to survive and thrive. This coming year, the convention center in downtown Louisville will be under construction, thus unavailable to us. Also, there are so many winter trade shows, we were in constant competition with other states’ events. We were also somewhat at the mercy of the dates the convention center could offer us because of other scheduled events. This forced some potential exhibitors to choose which state show to attend. In short, we felt that we needed to put some sanity into our tradeshow(s), both for our exhibitors and to attract a more robust crowd of attendees. In January, a task force was created to address the future of our expo and education seminars. Chaired by Kim Fritz (KNLA’s vice president), task force members — Tom Weeks, Jeff Moore, Dr. Bob McNiel, Wes King, Brent Grunfeld, Michael Mueller, Betsie Taylor and I — spent considerable time this year overhauling our summer and winter meetings. This was a grueling task, and I want to thank them for their work on this matter. We also canvassed some of our exhibitors and want to thank them for their valuable input. So, ladies and gentlemen, I now want to present to you the results of those many hours, surveys and site visits. Our summer show (replacing our traditional winter show) is now called KNLA’s Summer Retreat – Leadership Forum and Marketplace, which will be held in Lexington on September 1–2, 2015, at the Embassy Suites, adjacent to the University of Kentucky Agriculture area. The hotel is extremely nice, with a great outdoor space for our Marketplace. This new two-day event will include seminars geared toward


management and business as well as plants and landscape design, with the intent of attracting qualified buyers. The Retreat will also include KNLA’s new Marketplace expo, now our major tradeshow of the year. The Marketplace has expanded to two days and offers ample room for exhibitors to display equipment, plants, mulches, irrigation, pavers/rock and many other items. Please plan on joining us for our fun-filled education and Marketplace! Our annual winter meeting is now called KNLA’s Spring Training & Showplace and will be held on January 27–28, 2016, at the totally renovated Ramada Plaza Hotel and Conference Center off of Hurstbourne Lane in Louisville. This meeting will feature seminars geared towards crew academy, plant production and management. It will also include pesticide classes for those wanting to obtain a pesticide license and for those needing CEUs to maintain their pesticide license. Also classes and CEUs for arborists and for landscape architects will be offered at both events. We will have an exhibit area, and we will continue to offer the Kentucky Certified Nursery Examination. This past year saw a 15% increase in attendance at our educational program. 70% of these participants came from Louisville and nearby surrounding counties. This high percentage was a determining factor in keeping our winter meeting in Louisville. Dr. McNiel has done a wonderful job in coordinating the seminars and acquiring interesting and informative speakers. It is a daunting task to put together such a program with three concurrent sessions, for two days. We all want to thank Dr. McNiel for his tireless efforts! We also would like to thank our other two education advisors for their volunteerism and expertise — Dr. Dewayne Ingram and Dr. Win Dunwell. Dr. Dunwell also is the chairman of our Kentucky Certified Nurseryman’s exam, an incredible undertaking. The KNLA board and I encourage each of you to support both cutting-edge and dynamic programs! Martin Korfhage 2014-2015 KNLA President

News from knla

Meet Your New

KNLA Directors


Durham Eric Garris

Eric has been a horticulturist at Bernheim Arboretum and Research Forest since 2006, where he shares his passion for growing, studying and teaching others about plants and gardening. He holds a B.S. degree in Environmental Biology from the University of North Alabama and is an ISA Certified Arborist and a Kentucky Certified Nurseryman. He lives in Magnolia with his wife and two children, where they garden and propagate fruiting trees and shrubs on their farm, Good Dirt Nursery.

Margie Witt

Nurs ery Views • Spri ng 2015

Margie has been active in the landscape industry for the last 15 years. She began doing small landscaping design projects and installations for friends and quickly grew her business to about 20 residential maintenance and installation projects each year. In 2010, she joined a landscape firm in northern Kentucky where she continued to design and install residential landscapes and also added commercial design to her areas of interest. In 2013, she joined Ammon Nursery, where she has served in various roles: assisting residential customers with plant selection and design, presenter of public-education programs for local garden clubs and local elementary STEM courses, event and social-media coordination for the nursery and publisher of the nursery’s monthly newsletters. 2


Earns KY Certified Nurseryman


new candidate has received Kentucky Nurseryman certification for 2015: • Troy Durham, Masonic Homes of Kentucky, Grounds Department, Masonic Homes, Kentucky The Kentucky Certified Nurseryman designation helps consumers locate trained professionals who are knowledgeable on a wide variety of topics, such as plant identification, proper plant usage, keeping plants healthy and pest-free, soils, turfgrass management, landscape design and proper planting and maintenance of nursery stock. The Kentucky Certified Nurseryman examination is administered once a year at the Kentucky Landscape Industries Winter Educational Conference in January. Anyone may obtain the KCN training manual and take the exam. To be granted Kentucky Certified Nurseryman status, an individual must have worked 6 months full-time or 500 hours part-time in a nursery, garden center or other landscape industry firm. Candidates who successfully complete the test must file for certification and provide signed work-experience statements from their employers. They are required to sign an agreement to abide by the rules and regulations governing a Kentucky Certified Nurseryman, as established by the certification committee. For more information, visit KNLA’s website at For questions about the KCN exam, contact KCN Exam Chair, Dr. Winston Dunwell, Extension Nursery Crops Specialist, at the University of Kentucky College of Agriculture, at 2


New KNLA Members! Active Members 64 Yellow Roses Contact: Maureen Stites

4254 Bardstown Trail Waddy, KY 40076 Office: (502) 641-6814 The Lawn Pro Contact: Jim Hulsmeyer

3007 Sprowl Road Louisville, KY 40299 Office: (502) 266-9525 Fax: (502) 267-6025 Associate Member Rincon-vitova insectaries, Inc. Contact: Kyra L. Rude

108 Orchard Drive Ventura, CA 93001 Office: (800) 248-2847 Fax: (805) 643-6267


Goshen Gardens Growers of


Nur sery Views • Spr ing 2015

Large American Beech, European Beech, Cedar of Lebanon, American Holly, Boxwood,… and many more! 502-228-1733

Green gatheringS

Highlights from

KNLA’s Annual Business Meeting, January 21, 2015


KNLA Vice President Kim Fritz and President Martin Korfhage presiding over the 2015 Annual Business Meeting.

Left to right: Kim Fritz, Martin Korfhage, Margie Witt (accepting on behalf of Cora Martin), Rodney Beyersdoerfer and Johnnie Stockdale.

KNLA’s Annual Business Meeting on January 21, 2015, KNLA president Martin Korfhage (Clinton Korfhage Landscaping) and vice president Kim Fritz (Village Green Wholesale Nursery) honored three outgoing KNLA board members: Cora Martin (Ammon Wholesale Nursery), Rodney Beyersdoerfer (Premium Horticultural Supply Co.) and Johnnie Stockdale (Stockdale Tree Farm). Korfhage expressed his sincere appreciation on behalf

of the KNLA board of directors and membership for their time and volunteerism to not only the association but to the horticulture profession. He also added, “KNLA has grown tremendously with the vision and dedication from Cora, Rodney and Johnnie in the several years they have served as a board members.” Thank you Cora, Rodney and Johnnie for your years of service — you all will truly be missed!

Bill Strain

Inducted into KNLA Hall of Fame Also at the meeting, Bill Strain was inducted into KNLA’s Hall of Fame. Bill is owner of Strain & Son’s Nursery in Athens, AL, and was awarded the Hall of Fame status for his “sincere dedication to the association and for his efforts for the advancement of the horticulture industry in Kentucky,” KNLA president Martin Korfhage announced to attendees. Korfhage also noted, “Bill has been a great supporter of not only KNLA but to other regional state associations and contributes to horticulture to in our region, and we really appreciate Bill for all he has done for the horticulture community.” 2

Nurs ery Views • Spri ng 2015

Martin Korfhage (left) with new KNLA Hall of Fame inductee Bill Strain.


Don’t Miss KNLA’s


Leadership Forum & Marketplace Learn & Earn to Flourish Your Business

KNLA’s Training & Showplace Nurture your Team & Bloom your Business!

September 1–2, 2015

January 27–28, 2016

KNLA Summer Retreat — Leadership Forum and Marketplace Embassy Suites • Lexington, KY

KNLA Spring Training — and Showplace Ramada Plaza Hotel and Conference Center Louisville, KY

Mark Your Calendars Today! Thanks to Our Generous KLI Winter Conference & Expo Sponsors!

Luncheon Sponsor Monrovia Growers • Azusa, CA

Sponsors Ammon Wholesale Nursery, Inc. Burlington, KY Lawnco, LLC • Louisville, KY Nature by Design • LaGrange, KY Red Barn Nursery • Nicholasville, KY Signature Landscapes • Nicholasville, KY Wilson Nurseries, Inc. • Frankfort, KY Wolf Creek Company • Trotwood, OH

Clinton Korfhage Nursery • Louisville, KY Wilson Nurseries, Inc. • Frankfort, KY 9

Nur sery Views • Spr ing 2015

Trade Show Entrance

Plant profile

Smaller Selections of

Oakleaf Hydrangea By Winston Dunwell, Ph.D., Professor, Nursery Crops, University of Kentucky

Hydrangea quercifolia ‘Munchkin’. Photo by Win Dunwell.

Nurs ery Views • Spri ng 2015


ydrangea quercifolia (oakleaf hydrangea) species and cultivars were selected as one of Kentucky’s Theodore Klein Plant Award winners in 1999. H. q. is a native of the southeastern United States. Although it’s not on the NRCS Plants Database map for Kentucky, Ronald L. Jones includes it in his book Plant Life of Kentucky as a “to be expected” plant, but an observation in the wild has not been published. Hydrangea quercifolia can be a large and sometimes rangy plant, leading to a desire for smaller selections. Smaller selections have been made: most notably, H. q. ‘Ruby Slippers’ and H. q. ‘Munchkin’ by Sandy Reed, retired breeder (USDA — McMinnville, TN). In addition, H. q. ‘Pee Wee’, an earlier blooming variety, has done well in Kentucky landscapes, as has a yellow-foliage variant of it, Little Honey™ (‘Brihon’, PP15,477). These smaller cultivars were selected for the 2014 Theodore Klein Plant Award. They are frequently advertised as 3' by 3' in size, but most of the cultivars mentioned in this article have been known to continue to grow larger than stated (but smaller than the species). The bloom is smaller than standard Hydrangea quercifolia but showy all the same. ‘Munchkin’, a seedling from openpollinated H. q. ‘Sikes Dwarf’, is 3' tall by 4.5' wide at 9 years. It blooms early in the season for the species, and its flowers


open white and then turn pink with age. ‘Ruby Slippers’, the result of hybridization of oakleaf hydrangea cultivars Snow Queen® and ‘Pee Wee’, is 3.5' tall by 5' wide at 7 years (4' to 5' tall x 6' wide at 12 years) and, like the others, opens white but quickly turns pink and darkens to rose. ‘Sike’s Dwarf’ Hydrangea was introduced by Louisiana Nursery and has been grown in Kentucky landscapes. Open-pollinated seedling selections have been made from it and crossed with other oakleaf hydrangeas to get a small stature and good foliage into newer cultivars.

Propagation Oakleaf hydrangeas are propagated by seed, cuttings, tissue culture and division.

“…We usually take softwood cuttings in June. While preparing the cuttings, we use scissors (not clippers) and cut half or more of the foliage off (1) to reduce top weight and (2) to allow better mist circulation around the entire cutting. We found that scissors made a good clean cut and was less tiring on the hands than using clippers. Both sides of the cutting is wounded, then dipped in a quick dip of 2500 KIBA. Our prop mix is 100% bark, and we typically use an 18-cell tray. We use a fogging system from early daylight to almost dusk. This has proven to work well because the bark does not get over saturated and cause stem rot, but enough mist to keep the leaves from drying out, usually about 95% to 98% Hydrangea quercifolia ‘Ruby Slippers’. Photo by Win Dunwell.

Dirr, Michael A. 2004. Hydrangeas for American Gardens. Timber Press, Portland, OR Dirr, Michael A.. 2009. Manual of Woody Landscape Plants: (6th Edition). Stipes Publishing, Champaign, IL Hydrangea quercifolia ‘Ruby Slippers’. Photo by Win Dunwell.

humidity. Once the roots start forming, we move out of fog and use intermittent mist.” (Sandy Reed and Donna Fare, personal communication). Michael Dirr (2004) recommends propagation through single-node cuttings, taken in the morning, 1000 ppm KIBA (“any commercial rooting hormone will work”). In the Manual of Woody Landscape Plants, Dirr says, “Our standard procedure is firm, woody cuttings in May, June and into September, 5000 ppm KIBA dip, well-drained medium, either all perlite or 3 perlite:1 peat, intermittent mist, 4 to 6 weeks rooting time.” Avoid over-

wetting the media or using media that has high water retention.


Fare, Donna. 2015. USDA McMinnville (Sandy Reed’s) Hydrangea propagation technique. Personal communication Jones, Ronald L. 2005. Plant Life of Kentucky: An Illustrated Guide to the Vascular Plants. The University Press of Kentucky, Lexington, KY

Anonymous. Hydrangea quercifolia ‘Pee Wee’ (accessed February 3, 2015) http://www.missouribotanicalgarden. org/PlantFinder/PlantFinderDetails. aspx?kempercode=z460

U.S. National Arboretum Plant Introduction Hydrangea quercifolia ‘Munchkin’ (accessed February 3, 2015) munchkin.pdf

Anonymous. USDA/NRCS Plants Database Hydrangea quercifolia W. Bartram - oakleaf hydrangea. (Accessed March 11, 2015) http://plants.usda. gov/core/profile?symbol=hyqu3

U.S. National Arboretum Plant Introduction Hydrangea quercifolia ‘Ruby Slippers’ (accessed February 3, 2015) rubyslipper.pdf 2

Nur sery Views • Spr ing 2015


disease alert



Boxwood Blight on the

Radar for Nursery Growers By Nicole Ward Gauthier, Ph.D. Extension Plant Pathologist, University of Kentucky

Nurs ery Views • Spri ng 2015



appy spring and summer, nursery growers!

As the weather has warmed, my email box has been blasted with questions on boxwood blight, which is a disease of boxwood (Buxus spp.), causing rapid defoliation and plant dieback. This fungal disease is particularly devastating to American boxwood cultivars, which can defoliate within a week and die within one growing season. Plants are eventually weakened by repeated defoliation and dieback, and resulting plant stress and consequent colonization by secondary invaders result in plant death. This fact sheet should help answer any questions you may have: http://www2. files/PPFShtml/PPFS-OR-W-20.pdf. Remember, if you suspect boxwood blight in your nursery, contact your county agent ASAP for help with sample submission and disease confirmation. The entire UK Extension team will work closely with you for disease management and eradication. More disease-related pubs can be found on the UK Plant Pathology webpage at pathology/extension/pubs.html#Ornamental Woody. Feel free to copy this information and distribute it to your customers. Follow my Facebook page for up-todate alerts and seasonal information 2 Photo 1. Early symptoms of boxwood blight include leaf spots, but because leaf drop occurs soon afterward, this phase often goes unnoticed. Photo 2. Dark stem lesions are one of the most distinguishing symptoms of boxwood blight. Photo 3. Defoliation of the lower plant canopy is often the first obvious symptom of boxwood blight.


News from the kda

Take Advantage of KDA’s Cost-Share Grants to

Cut Your Business Expenses and Expand Your Options! By Joshua Lindau, Horticulture Marketing Specialist, Kentucky Department of Agriculture


his past March marked the beginning of my third year at the Kentucky Department of Agriculture, and as many of you already know, I am the administrator for the Kentucky Horticulture Grants. For the last two years, the Kentucky Horticulture Council Grants have NOT been fully exhausted, and I want make sure that you are aware that these cost-share programs are available to Kentucky Proud members whose primary business is horticulture. Below are all of the grants available for 2015 through Kentucky Proud and the Kentucky Horticulture Council; both were made possible by funding from the Agriculture Development Board. The Kentucky Horticultural Council continues to support the horticultural efforts in the Commonwealth for 2015 with three grant programs, each with a $1,250 maximum benefit for the 2015 calendar year. There is also a Kentucky Proud promotional grant worth up to $12,000 currently available to those who qualify. Please note that the $5,000 lifetime cap on the Kentucky Horticulture Council Grants HAS BEEN REMOVED, so if you previously had maxed out, you are now eligible to participate again. Below I have listed each grant and how you may be eligible.

Advertising Cost-Share Grants

Market Development Cost-Share Grants

The 2015 Kentucky Horticulture Council Market Development Cost-Share Program is a reimbursement program for producers in the horticulture industry. This grant may be used to learn new marketing techniques, become aware of marketing trends, create and develop new markets as well as expand old ones, create opportunities to network and make new contacts in the marketplace. Eligibility for reimbursement under this program includes, but is not limited to, the following horticultural-related items: registration fees for conferences, seminars and educational workshops; booth fees for exhibiting at tradeshows; tours of horticultural facilities and wholesale agents; and other market development avenues with specific pre-approval. Under this program, participants are eligible to receive up to 100% of your registration fee for any appropriate conference or educational opportunity. (All activities are subject to approval, and college credit courses are not included in this program.) You must match the fee cost with your travel expenses (mileage, meal per diem, lodging, etc.) for attending the educational opportunity. No purchases at the conference will count toward your match (speaker recordings, books, DVDs, etc.). The most you may receive under this program is $1,250 for the granting year, which is on a calendar basis.

Third-Party GAP Cost-Share Grants The 2015 Kentucky Horticulture Council Third Party GAP Audit Cost-Share is available to any Kentucky producer who is a Kentucky Proud member completing a third-party Good Agricultural Practices audit. This cost share is 50%, with a maximum reimbursement of $1,250 for 2015. Funds are limited for 2015; pre-approval is strongly encouraged, but not required.

Kentucky Proud Promotional Grant

The 2015 Kentucky Proud Promotional Grant reimburses up to half of eligible expenses for advertising, marketing and reaching consumers at the point of purchase to promote Kentucky Proud products with direct Kentucky farm impact. The maximum for this is up to $12,000 in 12 months, based on 10% of direct Kentucky farm impact. For more information on this grant visit: http:// KYP_GrantApplication.pdf

Summary To be able to participate in any of these programs you must be a Kentucky Proud member. It is free to join and can be done at index.aspx. I look forward to helping answer any of your questions or directing you to someone who can. You can reach me at or 502-782-4115. 2


Nur sery Views • Spr ing 2015

The 2015 Kentucky Horticulture Council Advertising Cost-Share Program assists Kentucky producers of horticulture products to market their products through a 50% cost-share reimbursement on advertising that meets program criteria. The

most you may receive under this program is $1,250 for the granting year, which is on a calendar basis. Applications are being accepted as of January 1, 2015.

Advertisers Index

Ammon Wholesale Nursery, Inc...............7

Millcreek Gardens, LLC................................14

Boshancee Nursery, Inc...............................14

Motz & Son Nursery...........................................8 OHP.................................................................................14

Center Hill Nursery........................................14

Fairview Evergreen Nurseries................11

Goshen Gardens Nursery & Landscape........................................7


Low Falls Wholsale Nursery, Inc..........7

McHutchison Horticultural......................8

Oldham chemicals co....................Back cover

Richey Nursery Company, LLC..................12

Smith Seed Services.........................................14

Tree Equipment Design, Inc..........................6

Wellmaster Carts................ Inside Back Cover

Whayne Supply Company................................3



Nurs ery Views • Spri ng 2015

Scan the QR code: Download your favorite QR reader to your phone and scan the code to learn more about these companies.