Talks – Charlton and Blackheath Amateur Horticultural Society

August 2026 Talk: The Exchange, Erith

Selina Ozanne, head gardener at The Exchange, Erith. CABAHS August 2026

It was a pleasure to welcome Selina Ozanne to our August meeting to hear about her work as Head Gardener for The Exchange, Erith, a community led arts and craft organisation based in the town’s former Carnegie library.

The refurbished listed building is now home to craft production workshops, a cafe and shop, along with a varied programme of community events.

The Exchange gardens were designed by Chelsea Gold medal winner Sarah Price. The site has various challenges from a sloping roadside front garden exposed to sun and wind from the Thames, to a woodland-edge rear garden with a steep incline. Sarah’s design pulls together these diverse elements together using sustainable materials and matrix planting to make the garden flow coherently in a way that everyone can access.

Spring flowers at the Exchange. Photos: The Exchange Erith

July 2026 Talk: Hardy Geraniums

Graham Spencer talking about hardy Geraniums, CABAHS July 2026

July’s meeting featured an entertaining and informative talk about hardy geraniums by Graham Spencer who has been involved in the horticultural industry for over 30 years, including 15 years as a nursery manager and perennial plant specialist. In 2003 he set up Plants for Europe and now works with plant breeders to bring new varieties to market giving him a strong understanding of current trends and an expert insight into what makes a plant exceptional.

Graham gave us a comprehensive overview of this huge genus, with fascinating insights into the different species, their natural habitats and the many hybrid varieties bred to take on the the best characteristics of parent plants. Easy to grow and loved by bees, this popular group of plants includes 120-130 species and some 500-600 named varieties. Once established most are drought tolerant and flower from April to June or July. After a dormant period many flower again in September. British native geraniums include Herb Robert (Geranium robertianum) although many think of it as a weed.

Geranium robertianum / herb Robert / stinky Bob
Sannse at en.wikipedia, CC BY-SA 3.0 , via Wikimedia Commons — Some very different pink *Geraniums*, including herb Robert!

Geranium × oxonianum f. thurstonianum — Some very different pink *Geraniums*, including herb Robert!

June 2026: Gardeners’ Question Time

Our version of Gardeners’ Question Time was back for the June meeting and proved once again to be an informative and enjoyable event.

Members look around the Old Pond Garden before the CABAHS GQT, June 2026 — Lots to learn from and admire in Charlton House Old Pond Garden

The evening started with a pleasant stroll around the Old Pond Garden, admiring the plants and taking in the evening sun.

Back in the Old Library, we set about tackling questions that had been submitted by members before the meeting. In a change to previous years, there was no formal panel or guest expert. Instead, questions were answered by our very own experts with lots of discussion and contributions from CABAHS members, compered by Kathy and illustrated with slides.

May 2026 talk: Miss Willmott’s Ghosts

We were delighted to welcome Sandra Lawrence, author of an excellent book about Ellen Willmott FLS VMH (1858-1934). The book’s full title is ‘Miss Willmott’s Ghosts: The Extraordinary Life and Gardens of a Forgotten Genius’ and Sandra told us a lot not only about the forgotten Miss Willmott but also why she has been forgotten and what it has taken to bring her life and legacy to light once more.

'Miss Willmott's Ghosts: The Extraordinary Life and Gardens of a Forgotten Genius' by Sandra Lawrence

Ellen Willmott was actually very well-known in her own lifetime, but after her death her name slipped into relative obscurity, accompanied only by increasingly wild anecdotes about her character and actions… only some of which were true. The story that most of us have heard, but which is unlikely to be true, is that Miss Willmott secretly scattered the seeds of Eryngium giganteum (aka sea holly) whenever she visited a garden. The following year, a magnificent and ghostly-looking plant – now known as ‘Miss Willmott’s Ghost’ – would appear to remind everyone of her presence.

March 2026 talk: Plants for Shade

At our meeting on Monday 16 March we welcomed Lynne Moore of Moore and Moore Plants to talk to members about shade loving plants. A specialist in plants for shade for over 30 years, Lynne was clearly passionate about her subject and described herself as a ‘plantaholic’. She noted that from their very first time exhibiting at the Chelsea Flower show, one of the most common complaints she heard from visitors was that ‘nothing grows in the shade’ and this may be why our meeting attracted a large number of attendees. Lynne set out to prove that this is a very mistaken view…

Speaker Lynne Moore of Moore & Moore Plants, speaking at CABAHS, March 2026 — Lynne Moore talking about ’52 Weeks in the Shade Garden’

A slide from Lynne Moore's talk about plants for shade, March 2026 — Lynne Moore talking about ’52 Weeks in the Shade Garden’

January 2026 talk: Clematis for every season

On Monday we welcomed Everett Leeds who gave us an amusing and highly informative talk about the prolific world of Clematis. He has been involved with Clematis for many years through growing, speaking and writing about them. He has been the Chairman of the British Clematis Society four times and is co-author of The Illustrated Encyclopaedia of Clematis . Everett’s enthusiasm for the genus was highlighted when he shared a photo of his former home with the front fence, hedges and trees completely swamped by a 120 foot long and 40 foot high ‘monstrous’ C. Montana. After cutting this completely away, he planted another!

Everett Leeds talking about Clematis CABAHS January 2026 — Everett Leeds discussing the vast range of Clematis and how to grow them from cuttings

November 2025 talk: The Great Geranium Robbery

It was a pleasure to welcome back Dr David Marsh, garden historian, academic and former trustee of The Gardens Trust. The intriguing title of his talk was ‘The Great Geranium Robbery’, about an Old Bailey trial in 1795 following the theft of numerous expensive plants…

The scene:

Daniel Grimwood’s Nursery (formerly The Kensington Nursery) in West Kensington.

The context:

Furber's 'Twelve Months of Flowers: September' 1730, by Henry Fletcher. — Furber’s ‘Twelve Months of Flowers: September’ (1730)
and ‘Twelve Months of Fruit: June’ (1732)

Furber's 'Twelve Months of Fruit: June' 1732, by Henry Fletcher — Furber’s ‘Twelve Months of Flowers: September’ (1730)
and ‘Twelve Months of Fruit: June’ (1732)

October 2025 Talk: Flowers in Art

This month we welcomed Ruth Cornett, one of our own members, who talked to us about Flowers in Art, building on some of the themes she had developed in an earlier presentation.

Ruth demonstrated that, over the years, artists have used flowers in their work to indicate and symbolise a range of meanings, from simple decoration to literary references. Depending on the context, flowers have been used to deliver a hidden message, promote certain ideas, to educate, to convey a Christian story or describe the cycle of life. Ruth’s presentation used one or two paintings to illustrate each of these themes.

Charles-pineapple — *Charles II of England being given the first pineapple grown in England*
*by his royal gardener, John Rose*
Hendrick Danckerts, 1675

September 2025 Talk: Clare Lanes on the Greenwich Park Rose Garden

Clare Lanes talking about the Greenwich Park Rose Garden renovation project.
CABAHS September 2025 — Clare Lanes explaining the Greenwich Park Rose Garden renovation project.

CABAHS members were delighted to welcome Clare Lanes, Project Manager of the ambitious Greenwich Park Revealed project, to talk to us about ‘The Greenwich Park Rose Garden: Renovation and Redesign 2023-2025‘.

Tackling this has been a thorny issue – no pun intended – amongst park users as the Rose Garden was a much-loved feature. Somewhat surprisingly the Rose Garden, as it was when Head Gardener Tom Brown began work on the replanting in 2021, was not one of the heritage areas that fell under the Greenwich Park Revealed project. The garden had first been laid out only in the 1960s with some updates taking place in the 1990s.

July 2025 Talk: Adventures with Bulbs

Following on from a talk given in October 2024 by Dr Tim Ingram about his family run garden – Copton Ash – he returned for a more detailed presentation about the bulbs grown there. As he was not well that evening, his wife Gillian gallantly stepped up at the last moment to deliver the talk.

Gillian Ingram of Copton Ash Nursery speaking at CABAHS July 2025 meeting

A wealth of bulbs have now been planted at Copton Ash, in beds, under trees and also allowed to naturalise in long grass. In particular a circular sunny gravelly bed was highlighted. The planting was at first inspired by the Lime Walk at Sissinghurst Castle which is very much a spring show of narcissus, tulips, primroses, anemones, scillas, violets and erythroniums. Tim has continuously added to and altered the planting in the circular bed so that there is now interest throughout the year.