Botanic Garden Horticulturist / Plant Collections Curator

The work is keeping plants alive that might otherwise stop existing, and keeping the record that makes them scientifically meaningful. A botanic garden is not a pretty garden with labels. It is a living collection with provenance — each accession has a documented origin, and that documentation is what separates a conservation resource from a nice display. The plants grown here are difficult, rare, extinct in the wild, or scientifically important, and the paperwork that proves what they are and where they came from is kept alongside them.

The distinct contribution is endurance. The head gardener grows a place, the commercial grower grows a population, the CEA specialist engineers a system — the collections curator makes sure a specific genetic lineage is still here in a century. That is Preservation in a form as literal as the frs biosecurity role, approached from the other end: they stop things being destroyed, this role holds the last copies.

The craft is unusually deep and unusually narrow. Growing a common bedding plant is a solved problem; growing a species nobody has successfully propagated, from a handful of seeds, with no protocol, is not. Botanic horticulturists develop the propagation and cultivation knowledge for plants that have no manual, and that knowledge is genuinely rare — sometimes three people in the world know how to grow a given thing. The other half is the record: accession numbers, provenance data, plant records databases, and the discipline of documenting what was done so the next person has the manual this one did not.

The competition for entry is fierce and the pay does not compensate for it. The Kew Diploma takes up to fourteen students a year by competitive interview and asks for two years' full-time horticultural experience just to apply [RBG Kew 2025-26]. A hard-won place leads to a hard-won qualification and then into a sector where the RHS's own horticulturist average pay sits around £22,500 [from salary and job-posting data, Indeed 2025]. The prestige of the institutions and the modesty of the salaries coexist uncomfortably and everyone in the sector knows it.

A curator outlives some of the collection and the collection outlives the curator. Staff describe both as difficult in different ways: watching a specimen grown for twenty years fail, and knowing that a newly planted tree has a curator not yet born. The institutional memory problem is real — when a horticulturist retires, undocumented knowledge leaves with them, which is exactly why the documentation half of the job matters as much as the growing half.

And it is much more scientific than the job title suggests. This role sits alongside taxonomists and conservation scientists and is expected to hold its own with them — nomenclature, provenance standards, conservation frameworks, seed biology. Students who imagined a gardening job with nicer plants find a research institution with a glasshouse attached.

The Kew Diploma is the flagship: up to fourteen places a year, competitive interview, requiring the equivalent of two years' full-time horticultural work at a recognised establishment before you start [RBG Kew 2025-26]. The Kew apprenticeship in botanical horticulture is the entry-level route in, aimed at senior craft level [RBG Kew 2025-26]. The alternative path is a plant science, botany, or horticulture degree plus serious practical growing experience, or the RHS Level 3 Diploma and the Wisley work-based route [RHS 2025-26]. Everything here is gated on demonstrable plant knowledge and hands-on propagation skill — get onto a glasshouse team early, learn to propagate difficult things, and learn the names properly.