A Brief History of the Palm House
June 28, 2026
How Victorian engineers created tropical climates in Dublin, and why the National Botanic Gardens' palm house remains one of Ireland's most remarkable architectural achievements.
Siobhan O'Mahony
Senior Botanical Heritage Correspondent
Unaloves Ltd
Who She Is
Botanical Heritage Through a Practical Lens
Siobhan O'Mahony isn't your typical garden historian. Yes, she's spent 16 years documenting Ireland's historic botanical spaces and holds a Master's degree in Garden History from University College Dublin. But what actually sets her apart is something simpler: she genuinely cares about whether real people can actually experience these places.
Her expertise spans Victorian glasshouse conservation, arboretum accessibility, and the specific needs of older visitors navigating Dublin's most treasured gardens. She's conducted over 200 guided documentation walks through the National Botanic Gardens Glasnevin, measuring pathways, studying sight lines, and understanding how people at different life stages move through and connect with botanical spaces. This isn't abstract research — it's grounded in real observation and practical problem-solving.
As Senior Botanical Heritage Correspondent at unaloves Ltd, she brings institutional knowledge paired with genuine empathy. She's the person who notices when a palm house entrance feels unwelcoming to someone with mobility considerations, and who understands why Victorian glasshouse design matters not just historically, but for how we experience beauty and nature today.
Background
Key Career Milestones
01
Research & Foundation Years
Undergraduate studies at Trinity College Dublin focused on Victorian horticultural history. Completed Master's degree in Garden History at UCD, developing deep expertise in 19th-century botanical culture and glasshouse architecture.
02
Irish Garden Plant Society Years
Spent five years as research assistant cataloguing historic specimens and documenting glasshouse architectural records. Published breakthrough study on palm house design evolution in 2015, which brought attention to her accessibility-focused approach.
03
Accessibility & Practical Focus
Over eight years collaborating with heritage tourism professionals and the National Botanic Gardens on accessibility initiatives. Conducted 200+ guided documentation walks through Glasnevin measuring real visitor experiences, driven by personal understanding of how gardens should welcome everyone.
04
Senior Correspondent Role
Currently serving as Senior Botanical Heritage Correspondent at unaloves Ltd, combining rigorous historical research with empathetic observation. Her work bridges institutional knowledge and authentic visitor experience, making botanical heritage accessible to broader audiences.
Specialization
What She Writes About
Deep expertise across three interconnected areas of botanical heritage and garden accessibility
Victorian Glasshouse Heritage
The history and architecture of 19th-century glasshouses — why they were designed the way they were, how they functioned as both scientific laboratories and social spaces, and what makes them remarkable. She's particularly focused on how these spaces reflected Victorian obsession with exotic plants and engineered environments, and why their preservation matters today.
National Botanic Gardens Glasnevin
Detailed documentation of Dublin's most important botanical institution — its palm house pathways, arboretum routes, tropical plant collections, and visitor experience. She's mapped accessibility features, identified welcoming routes for older visitors, and created practical guides that combine historical context with genuine usability information.
Accessible Garden Tourism
How botanical heritage can be meaningfully experienced by visitors at all life stages and ability levels. This isn't tokenistic inclusion — it's grounded in real observation of how people move through spaces, what barriers exist, and how gardens can welcome everyone without compromising historical integrity or beauty.
Arboretum & Walking Routes
Practical expertise in documenting tree collections and creating walking paths that work for different abilities. She's written extensively about which arboretum routes are genuinely easy for seniors, where you can rest, how to see the most remarkable specimens, and why the arrangement of trees tells a story about Victorian botanical collecting.
Her Method
Research Meets Reality
Siobhan's approach is distinctive because it refuses to separate academic rigor from practical empathy. She doesn't just read about Victorian glasshouse design in historical archives — she walks through them repeatedly, timing how long certain pathways take, noting where the light falls, observing which routes feel natural and which feel isolating.
Her work is driven by a core conviction: botanical heritage shouldn't be reserved for the young or able-bodied. This belief comes from personal experience. Her own family's experiences navigating Dublin's cultural spaces shaped how she thinks about access and welcome. She's learned that genuine accessibility isn't about ramps and signage alone — it's about understanding the full human experience of moving through a place.
Every article she writes combines meticulous historical research with this grounded observation. You'll find specific details: exact pathway widths, bench locations, seasonal variations in plant displays, sight lines from different vantage points. Not because she's being pedantic, but because these details matter to real people planning real visits.
"Botanical heritage shouldn't be reserved for the young or able-bodied. My approach combines rigorous historical research with practical, empathetic observation of how people actually move through and connect with these spaces."
Recent Writing
Featured Articles
Her latest work on Victorian glasshouses and accessible garden experiences
Best Arboretum Routes for Easy Walking
June 25, 2026
Practical guide to the most accessible and rewarding arboretum paths at Glasnevin, with details on distances, surfaces, and what you'll actually see along the way.
Tropical Plants You'll See Inside
June 22, 2026
What grows in the glasshouse and why it matters. From Victorian-era specimens still thriving today to contemporary plant collections that represent global botanical diversity.
Planning Your Visit: Practical Tips
June 20, 2026
Everything you need to know before visiting Glasnevin — from best times to visit to how to navigate different areas comfortably, whether you're walking independently or need accessibility considerations.
Explore Her Work
Discover more articles on Victorian glasshouse heritage, accessible garden experiences, and botanical history