CONTENTS THE BUSINESS MAGAZINE FOR COMMERCIAL GROWERS MARCH 2021 | VOLUME 31, NUMBER 3 28 14 On the Cover 'Beelicious Purple' is a FEATURES 14 Marketing Pretty & Powerful: Hardy Hibiscus The National Garden Bureau has declared 2021 as " Year of the Hardy Hibiscus. " How can you capitalize on this popular shrub? By Jasmina Dolce 18 Plant Health Managing Light & Disease Many variables play a role in disease control, but how can you use lighting technology as part of your overall strategy? By Erica Hernandez 24 Production Water You Missing? Three overlooked ways to enhance plant health with irrigation. By Jim Rearden 28 Management What to Avoid When Starting a Cannabis Operation These are some of the most costly and time-consuming mistakes made when starting a cannabis greenhouse. By David Kuack 32 Viewpoint Yes, You Made the Right Choice The past 12 months have been an unpredictable rollercoaster. While many of us felt discouraged or defeated at times, now is an opportune time to reconnect with the uniqueness of our industry and rediscover a bigger purpose. By Nathan Lamkey 4 MARCH 2021 GPNMAG.COM 36 34 Culture Report Catharanthus Soiree Kawaii Series Loaded with blooms, this compact, colorful series sizzles all summer! By Delilah Onofrey COLUMNS 14 Eight Years of Progress By Kevin Hurd 36 Vaughn's View Captivating Perennials By Vaughn Fletcher 42 Technically Speaking Maximizing Photosynthesis, Minimizing Respiration By Erik Runkle Miss our February issue? It's now available to view on gpnmag.com new agastache that showcases an abundance of eye-catching 34 vibrant flowers. Turn to page 36 to learn more about new captivating perennials. (Photo: Concept Plants) DEPARTMENTS 6 Editor's Report 8 Industry News 10 Chat Room 41 Classifieds/Ad Index Perspectiveshttp://www.gpnmag.com http://www.GPNMAG.COM