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What’s on in Science & Collections

Discover events for everyone, from free daily talks to exhibitions, scientific conferences, industry workshops and more

Plant Health Week 2025

Join us during Plant Health Week, 5–12 May 2025, for a programme of free talks and activities at RHS Gardens to shine a light on what plant health is all about and why it’s so important. Find a free event near you below

What’s on at RHS Wisley

  • Join our plant-health-themed Hilltop Live talks, taking place twice daily during the week, including two allotment-themed panel discussions with Q&A on Thursday 8 May
  • Browse engaging displays in the Wisley Library and other areas of RHS Hilltop – the Home of Gardening Science
  • Learn all about ‘Right Plant Right Place’ at a talk by Tracey Bull, Plant Health Advisor (Wisley Library, 11am Wednesday 7 May) 
  • Join our informative plant health walks at RHS Allotments on Thursday 8 May (10.30am and 1pm, starting at RHS Hilltop)

Tulips flowering outside RHS Hilltop, the Home of Gardening Science at RHS Wisley

Visit RHS Garden Wisley
An array of lichens growing on a branch at RHS Rosemoor

Visit the RHS Gardens

What’s on at other RHS Gardens

  • Explore RHS Rosemoor’s wonderful biodiversity through our unique Lichen Trail, which illustrates the variety of plant health around us
  • At RHS Bridgewater, learn more about the work the RHS Plant Health team do by enjoying the slides in the welcome area
  • At RHS Harlow Carr, learn more about the work the RHS Plant Health team do through displays in the library and slides in the welcome building

Get involved year-round

Science event for all

Hilltop Live talks

Free daily science talks, demos and interactive sessions for all, held at RHS Hilltop at RHS Wisley

Collections event for all

RHS Libraries events and exhibitions

Discover fascinating talks, tours and workshops at RHS Gardens and Lindley Halls in London

Science event for industry

RHS peat-free workshops

Free technical workshops for growers and industry, sharing latest insights into peat-free growing

Collections event for all

Botanical Art & Photography Show

An annual summer exhibition and judging of stunning botanical art and photography entries from all over the UK

Science event for all

John MacLeod annual lecture

Held every autumn, inviting prominent speakers to explore issues in horticultural science. Watch past lectures here

Collections events for all

All events & exhibitions at RHS Libraries

Discover talks, exhibitions and more based around our unique scientific and heritage collections

Take part from home

Discover RHS Science & Collections

Science & Collections at the RHS

Discover what we’re all about

Research areas at RHS Science

Find out what we’re working on

Help our research

Take part in community science projects

Get involved

91ÇÑ×Ó is the UK’s leading gardening charity. We aim to enrich everyone’s life through plants, and make the UK a greener and more beautiful place.