Ian taught garden design, garden history and indigenous landscapes in the Department of Landscape Architecture at Unitec in Auckland for 19 years. He also specialised in study tours to Japan. He has judged at international and local garden shows.

He was the founding President of the Garden Design Society of New Zealand (GDSNZ), and is the Secretary to the Accreditation Board of the Society.

In partnership with Penny Cliffin he set up HIKOI Garden Tours in 2016. HIKOI specialises in a professional approach to touring gardens with a strong emphasis on the cultural and historical context of gardens, including a taste of architecture and art to support garden visits.

Professional Memberships:
Associate Member - Landscaping NZ (LIANZ)
Academic / Accredited Member - Garden Design Society of NZ (GDSNZ)

Ian taught garden design, garden history and indigenous landscapes in the Department of Landscape Architecture at Unitec in Auckland for 19 years. He also specialised in study tours to Japan. He has judged at international and local garden shows.

He was the founding President of the Garden Design Society of New Zealand (GDSNZ), and is the Secretary to the Accreditation Board of the Society.

In partnership with Penny Cliffin he set up HIKOI Garden Tours in 2016. HIKOI specialises in a professional approach to touring gardens with a strong emphasis on the cultural and historical context of gardens, including a taste of architecture and art to support garden visits.

PUBLICATIONS

Henderson, I. (2015). Narratives across a relational web: Indigenous pedagogy in landscape architecture, Huihuinga Mātauranga Māori, Ngakau Mahaki, Unitec Marae, Auckland.

Henderson, I. (2015). Cultural emergence: Living in Aotearoa, X-Section Journal, (Vol. 5).

Henderson, I. (2015). Te hoahoa whenua: engaging in the Māori world, Indigenous Content in Education Symposium, Adelaide, Australia.

Henderson, I. (2015). Gardens, history and the designer: Contributions to historiography, Studies in the History of Gardens and Designed Landscapes, (Vol. 36(1)).

Henderson, I. (2014). Gardens, history and the designer: a more comprehensive interpretation of the artefact, Presented at The University of Waikato Symposium: Gardens at the Frontier: New Perspectives on Garden History, 29-31 January, Hamilton, New Zealand.

Henderson, I. (2014). Re-writing through both phenomena and noumena: a case study on the Donnell Garden., In Proceedings of the Society of Architectural Historians, Australia and New Zealand: 31, Translation, edited by Christoph Schnoor (Auckland, New Zealand SAHANZ and Unitec ePress; and Gold Coast, Queensland: SAHANZ, 2014), 681-90.

Henderson, I. (2014). Lan Yuan: A Garden of Distant Longing. Review of book Lan Yuan: A garden of distant longing, by J. Beattie and D. Campbell. Landscape Review, 15(1), 76-78.

Henderson, I. (2014). Scholar Gardens of Suzhou: their relationship with painting, poetry, calligraphy, and mountain landscapes. Presented to Garden Design Society of New Zealand.

Henderson, I. (2014). Scholar Gardens of Suzhou, Presented at ScALA Seminar Series, hosted by Departments of Architecture and Landscape Architecture, Unitec Institute of Technology, Auckland.

Henderson, I. (2013). Understanding the gardens of Suzhou, Landscape Architecture New Zealand, ISSN 1176-2329 (Vol. 20).

Henderson, I., & Woodruffe, P. (2013). University of Waikato 50th Anniversary Sculpture Competition, Concept Proposal Finalist, University of Waikato, Hamilton.

Woodruffe, P., Amituanai, E., Henderson, I., & Barbedes, W. (2012). The everyday collective: The old North Shore., Snowwhite Gallery, Unitec Institute of Technology, Auckland.

Woodruffe, P., Henderson, I., Erl, I., Gamble, S., & Amituanai, E. (2011). 'the everyday collective laboratory', NKB Gallery, Mt Eden, Auckland. 3-22 March.

Woodruffe, P., Henderson, I., & Corbet, R. (2011). The old North Shore. A heritage walkway: Rahopara Pa to Campbells Bay Beach., The Everyday Collective Laboratory, available from https://collectivelab.files.wordpress.com/2011/03/the-old-north-shore.pdf

Henderson, I., & Woodfuffe, P. (2011). "the everyday collective", Varieties of us: Kennedy Park and Rahopara Pa, Design Ecologies, ISSN 2043068X (Vol. 1/1)

Henderson, I. (2010). Designing with change at hand, ANZASCA2010 44th Conference of the Australia and NZ Architectural Science Association, Auckland, New Zealand, 24-26 November

Woodruffe, P., & Henderson, I. (2010). Varieties of Us: a case study in boundary and urbanism in Aotearoa, Cumulus Conference, Genk, Belgium. 26-29 May. http://www.cumulusbelgium.be/

Woodruffe, P., & Henderson, I. (2010). Varieties of Us: a case study in boundary and landscape in Aotearoa/New Zealand. Teaching and Learning Symposium, Unitec, Auckland.

Henderson, I. (2009). Dry raked gardens and other Japanese conundrums, Presented at ScALA Seminar Series hosted by Departments of Architecture and Landscape Architecture, Unitec Institute of Technology, Auckland.

Cochrane, T., Bateman, R., Cliffin, P., Gardner, J., Henderson, I., and Holloway, S. (2009). Mobilizing Learning: Mobile Web 2.0 Scenarios in Tertiary Education, , EDULEARN09: The International Conference on Education and New Learning Technologies 977-84-612-9802-0

Henderson, I. (2003). Winning designs. Alfresco (Summer), 83-91.

Henderson, I. (2002). Outing the garden. Landscape New Zealand (Nov/Dec), 24.

Henderson, I. (2002). A garden pilgrimage. Alfresco (Autumn), 54-55.

Henderson, I. (2001). Looking Over the Fence: The Garden as a Site for Multi-cultural, Multi-disciplinary Exploration. Presented to the Australasian Educators in Landscape Architecture Conference, Melbourne, Australia. 12 July.

Henderson, I. (2000). Critiques: Providing Learning Opportunities for Students or Counterproductive? Presented to the Australasian Educators of LandscapeArchitecture (AELA) Conference, Sydney, Australia. 13 February.