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Petrus Langenhoven

Horticulture and Landscape Architecture 

  • Horticulture/Hydroponic Crop Specialist
  • Horticulture and Hydroponic Crop Specialist
Horticulture Room 337
625 Agricultural Mall Dr
West Lafayette, IN 47907


Dr. Petrus Langenhoven is the Horticulture and Hydroponics Crop Specialist in the Department of Horticulture and Landscape Architecture at Purdue University. His focus is to support the establishment and expansion of local and regional food systems by increasing the productivity and efficiency of vegetable growers. His collaborative extension and research programs emphasize the development of sustainable and environmentally friendly production technology that can increase the efficiency of inputs and production, and the evaluation and introduction of alternative horticultural crops. Before arriving at Purdue, Dr. Langenhoven dedicated his career to the development of Sub-Saharan Africa’s horticulture sector. He completed his M.S. in agronomy at Stellenbosch University; and completed his Ph.D. in agronomy, specializing in vegetable production in high tunnels, at Stellenbosch. As operations director and senior agronomist at Agribusiness in Sustainable Natural African Plant Products (ASNAPP) — a non-governmental organization — Dr. Langenhoven led greenhouse crop production, specialty fresh-market vegetable and herb crop research, and technology transfer programs. He specialized in analyzing and developing horticulture supply chains. Thanks to his extensive experience in applied on-farm research and development, outreach and extension, agribusiness development, and the implementation of sustainable farming models, Dr. Langenhoven has assisted many start-up agribusinesses in developing business feasibility plans, production planning and management, and product marketing.

Research Interests:

Dr. Langenhoven’s research interests include the development of production technology that can increase the efficiency of inputs and production, while producing the highest quality products in a sustainable and environmentally friendly manner in conventional and controlled environment agricultural systems (CEA). Vertical farming, hydroponics, high tunnels and greenhouses are technologies of key interest. Water use efficiency, the optimization of plant mineral nutrition, soilless substrates, the use of more environmentally friendly energy sources for heating, and the use of aqueous ozone in water treatment form part of his research interests. His field research concentrates on addressing the growing needs of field and greenhouse vegetable and herb crops, and mint producers in Indiana.


Ph.D. Agronomy, Stellenbosch University, South Africa

M.S. Agronomy, Stellenbosch University, South Africa

B.S. Agronomy and Entomology, Stellenbosch University, South Africa


Selected Publications

Koroch, A., Simon, J. E., Hitimana, N., Daka, A., Ranarivelo, L., & Langenhoven, P. (2006). Quality of Geranium Oils (Pelargonium Species): Case Studies in Southern and Eastern Africa. Journal of essential oil research, 18.

Langenhoven, P. (2004). Yield and quality response of hydroponically grown tomatoes (Lycopersicon esculentum Mill.) to nitrogen source and growth medium. Stellenbosch: Stellenbosch University.

Jefthas, E., Goliath, J., Smith, M., Langenhoven, P., Acquaye, D., Juliani, R., . . . Brown, J. (2002). Quality assurance and quality control for African natural plant products from the ground up. ASHS Press, Alexandria, VA, 93–97.

Jefthas, E., Langenhoven, P., Smith, M., Renaud, E., Juliani, R., Wang, M., . . . Tannous, P. (2002). Challenges and Tribulations in the Commercialization of New Crops: Aromatic and Medicinal Plants. The Korean Society of Medicinal Crop Science, 10(4), 303–313.

Agenbag, G. A., Langenhoven, P., Jacobs, G., & Marais, E. M. (2001). Anatomical and compositional changes during fruit development of ‘Galia’melons. Taylor & Francis, 18(1), 7–14. doi:10.1080/02571862.2001.10634393

Langenhoven, P. (2000). First Report of Botrytis Blight, Caused by Botrytis cinerea, on Hibiscus in South Africa. Plant Disease, 84(4), 487.

Torres Bravo, A. P., & Behe, B. (2019). Characteristics of the U.S. Market for Melons. Manuscript in preparation.

Langenhoven, P. (in press). Colored Sweet Pepper Cultivar Evaluation for High Tunnel Production in West-Central Indiana, 2018.

Langenhoven, P. (in press). Zucchini Cultivar Evaluation for Production in West-Central Indiana, 2018.

Guan, W., Egel, D. S., Torres Bravo, A. P., & Deering, A. J. (2018). Effect of Growing Systems on the Production of Specialty Cantaloupes (Cucumis melo L.) in Indiana. Amer. Soc. For Hort. Sci.

Horticulture & Landscape Architecture, 625 Agriculture Mall Drive, West Lafayette, IN 47907-2010 USA, (765) 494-1300

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