About Us

Over 40 Years of Expert Oahu Landscaping

Awards & Recognition
Our Team
Kevin Mulkern
President
Kevin formed Mulkern Landscaping in 1975 after studying marine science and horticulture at Leeward Community College (LCC). A graduate of Kalani and LCC, Kevin has spent his life advocating for a landscape industry based on principles of sustainability and quality craftsmanship. He actively volunteers as a Kuliouou/Kalani Iki Neighborhood Board member and for environmental issues.
- Landscape Contractor C-27 3
- Live Roof Certified Installer 2010
- Certified Landscape Irrigation Auditor 1996
- Former Certified Arborist 1993

Susan Mulkern
Vice President
The head of administration, Susan has over 40 years experience in the landscape industry. A Punahou alumni and University of California, Los Angeles (UCLA) graduate. Susan usually handles initial consultations, accounting and business operations. Kevin consistently credits his wife Susan with Mulkern Landscaping’s success because of her extensive office and bookkeeping knowledge.
- Helped start company in 1975
- Past President of Hawaii Guild of Professional Gardeners
- Landscape Design Certified 1980

Allen Griffin
Manager
Allen works in the office and out in the field assisting our staff and responding to customer concerns. He is a talented fixer, from sprinklers and ponds to landscape equipment. Allen is a University of Maryland alumni and long time west Oahu resident. He will attend the Landscape Industry Certified Technician (LICT) training for Irrigation this summer. Come say hi to Allen Saturdays at our Waimanalo Nursery.
- Joined our team in 2000
- Landscape Industry Certified Technician (LICT) – Ornamental Maintenance 2015
- Landscape Industry Certified Technician (LICT) – Irrigation 2017
- Aquascape Pond Installation Certified

Dorothy Mulkern
Assistant Vice President
Starting September 2016 Dorothy will take an extended leave from Mulkern Landscaping to earn a master’s degree in landscape architecture (MLA) and in urban planning (MUP) at the University of Washington. Dorothy has been involved with the company since she was old enough to hold a shovel.
- Permaculture Design Certified 2015
- Landscape Industry Certified Technician (LICT) – Ornamental Maintenance 2015
- UC Berkeley’s Summer Institute of Environmental Design 2014
- UH Master Gardener 2013
