Explore The Plant Library

Members of The Plant Library have access to a database of more than 1500 different varieties of mainly herbaceous plants. This is a unique and extensive educational and well-being resource for anyone interested in plants and planting design.

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Becoming a member of The Plant Library grants you access to the database. Other benefits include free drop-in visits to The Plant Library every Friday afternoon, priority access to events at The Apple House, priority access to seasonal guided tours and subscription to newsletters from The Plant Library.

Garden Visits
Two Gardens in Peak Summer: The Plant Library & The Barn Garden & (21 July 2026)
Tuesday 21 July 2026, 10am-1pm

Join us as summer peaks to explore two large country gardens within a short walk of each other: The Plant Library of over 2,000 species of perennials and bulbs and Tom and Sue Stuart-Smith’s Barn Garden.

The Plant Library is a living catalogue of perennials and bulbs and this opening at the peak of the season will showcase many of the 2000 species at their best including Echinacea, Phlox, Salvias, Kniphofia, Veronicastrum, Lillium, Thalictrum, Scabious, Phlomis, Nepeta, Lavatera, Agapanthus, Oenothera, Artemisia, Althea, Kitaebela, Helichrysum, Lobelia, Anthericum, Saponaria, Eryngium, Amorpha, a vast range of ornamental grasses and many, many more.

The Barn Garden includes an enclosed courtyard with corten water tanks, the west garden with large areas of herbaceous planting in a formal frame of yew and hornbeam hedges, the vegetable garden, meadow, wildlife pond and prairie. In high summer the garden has a irrepressible abundance of growth with vast range of cultivated plants, including Sanguisorba, Persicaria, Dierama, Hemerocallis Digitalis, Asclepias, Macleaya, Liatris, Veronicastrum, as well as wildflowers and a wide variety of trees and shrubs. The meadow is full of knapweed and scabious.

The Plant Library and The Barn Garden will be open to visit between 10.00am–1.00pm, with refreshments and seasonal site baked cakes available to enjoy within The Apple House (available by pre-order only).

Pop-up plant sales will be hosted by The Plant Library team and Sunnyside Rural Trust’s on-site Orchard Nursery, providing the opportunity to take home distinctive and unusual plants grown from The Plant Library stock.

All profits from ticket and refreshment sales goes directly to support the work of our not-for-profit, The Serge Hill Project for Gardening Creativity and Health, which provides therapeutic and educational programmes to local schools, charities and community groups most in need.

Tickets are limited to only 50 per garden visit, meaning you can enjoy the tranquility of the gardens with only a small number of other visitors.

Photo Credit: Marianne Majerus

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Garden Visits
Three Gardens in Early Summer: The Plant Library, The Barn Garden & Serge Hill Garden Visit (16 June 2026)
Tuesday 16 June 2026, 10am-1pm
Workshops
A Midsummer’s Phone Photography Workshop in The Plant Library with Ann Kelly
Wednesday 17 June 2026, 5.30pm-9pm
Talks
Bacon 400: Sir Francis Bacon’s ‘greater perfection' and his passion for plants with Paula Henderson
Thursday 25 June 2026, 6pm-8pm
Garden Visits
Three Gardens in Midsummer: The Plant Library, The Barn Garden & Serge Hill Garden Visit (7 July 2026)
Tuesday 7 July 2026, 10am-1pm
Talks
Garden Visits
Abbots Langley Festival: Anya Lautenbach on Money-Saving Gardening and Garden Opening
Thursday 9 July 2026, 5:30pm-8pm
Garden Visits
Two Gardens in Peak Summer: The Plant Library & The Barn Garden & (21 July 2026)
Tuesday 21 July 2026, 10am-1pm
Garden Visits
The Serge Hill Plant Fair 2026
Sunday 26 July 2026, 11am-4pm
Garden Visits
Two Gardens in Late Summer: The Plant Library & The Barn Garden (4 August 2026)
Tuesday 4 August 2026, 10am-1pm
Garden Visits
Family Day at The Serge Hill Project (6 August 2026)
Thursday 6 August 2026, 10am-1pm
Workshops
The Gardening Drawing Club: Delightful Herb Workshop
Wednesday 12 August 2026, 1:30pm-4:30pm
Garden Visits
Family Day at The Serge Hill Project (13 August 2026)
Thursday 13 August 2026, 10am-1pm
Garden Visits
Family Day at The Serge Hill Project (27 August 2026)
Thursday 27 August 2026, 10am-1pm
Garden Visits
Two Gardens in Early Autumn: The Plant Library & The Barn Garden & (1 September 2026)
Tuesday 1 September 2026, 10am-1pm
Workshops
Stitching the Garden: Make and Stitch a Floral Bag with The Fabric Folk
Thursday 10 September 2026, 10am-1pm
Talks
Luciano Giubbilei on Presence in Gardens
Thursday 10 September 2026, 6pm-8pm
Talks
Gardens That Can Save The World with Lottie Delamain, Kali Hamerton-Stove and Sue Stuart-Smith
Tuesday 15 September 2026, 6pm-8pm
Workshops
Introduction to Nature Writing Workshop with Nic Wilson and Sue Stuart-Smith
Thursday 17 September 2026, 10am-4pm
Talks
Working With Drought: Planting For Changing Climates hosted by Tom Stuart-Smith Studio
Thursday 24 September - Friday 25 September 2026, 9.30am-4pm
Workshops
Painting The Garden Autumn Workshop: Capturing Nature with Acrylics with Anne-Marie Butlin
Thursday 1 October 2026, 10am-4pm
Garden Visits
Two Gardens in Autumn: The Plant Library & The Barn Garden ( 6 October 2026)
Tuesday 6 October 2026, 10am-1pm
Workshops
Naturalistic Flower Arranging Workshop with Aesme Studio
Thursday 15 October 2026, 10am-4pm
Gift Vouchers
The Serge Hill Project Gift Voucher