bulbs – Charlton and Blackheath Amateur Horticultural Society

Old Pond Garden Diary Update (April-December 2025)

As we come up to Christmas and the end of 2025, this is a great time to look back at how the ‘Old Pond Garden’ (OPG) project has fared this year.

Christmas 2025, dressing the tree of heaven with baubles, plus garden volunteers — Tree of Heaven, *Ailanthus altissima*, dressed up for Christmas
(plus 27 garden volunteers!)

Of course, it’s not just the ‘Old Pond Garden’ project any longer, as volunteer work now covers the whole estate, but we are still fond of the OPG tag. Since April, the Garden Volunteer scheme has been run by Royal Greenwich Heritage Trust (RGHT), however considering 80% of volunteers are also CABAHS members, it’s fair to say we are still very interested and still very involved.

Sharon has taken on the crucial role of Volunteer Lead for RGHT and works with Head Gardener Jason to make sure everything runs smoothly. She posts lovely updates on the garden team’s WhatsApp after every session, keeping us all on track, and sends a report off to RGHT every month.

Here are some highlights picked from Sharon’s reports of the past few months, I make no apology that this is a rather long post – we have done a lot!

10 Things for December 2025

December is a month when the garden often takes a back seat, and when Pat deserves a break from helping you all with your garden jobs, so the CABAHS Committee have come up with a list of 10 Things that they are doing this month in, from, or for their gardens.

Kathy's decorated greenhouse, December 2025 — December in the festive greenhouse

Pat’s 10 jobs for November 2025

1. You can start planting tulips now, either in pots or in the ground. The deeper they are planted in the ground the more chance there is of them reappearing next year – but do protect them well from squirrels who love to eat them.

2. It’s not too late to plant Narcissus and other bulbs like Allium, but again as deep as you can if planting in the ground as squirrels do love to lunch on Allium.

Narcissus 'Elka' bulbs — It’s not too late to plant Narcissus, and the perfect time to plant tulip bulbs for a beautiful display next year!

Tulips in spring — It’s not too late to plant Narcissus, and the perfect time to plant tulip bulbs for a beautiful display next year!

October 2025 Meeting and Show Table

The October meeting at CABAHS featured tea. coffee and biscuits, a raffle, bulbs for sale, the Show Table and an enlightening talk from Ruth Cornett about ‘Flowers in Art’.

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.

Keukenhof, April 2025

I returned to Keukenhof for a brief visit again this year. Transport in the Netherlands makes this a very easy trip and it is well worth making a stopover in Haarlem, which is a lovely town. I have little to add to the descriptions of my previous visits (April 2022, April 2023) so have just included a selection of photos which lovers of colour and tulips might enjoy!

Vija V

Pat’s Jobs for March 2025

Time to pot up those Dahlia tubers in 3 litre pots, making sure the tubers have an ‘eye’ which will shoot. Cover in compost, allowing the stem to rest at the surface, then label and water and keep somewhere reasonably light and frost free (greenhouse or windowsill) until they start growing.

2. Now is the time I start sowing sweetpeas: five seeds to a 3 inch pot and keep on a light windowsill or greenhouse until they germinate. You can try sowing directly into the soil which I think works well for some.

Great Dixter Behind the Scenes

Led by members of the garden team, the Behind the Scenes tours of Great Dixter provide an opportunity to explore the garden and meadows to examine the plants which are putting on a display at particular times of the year, offering an insight into the work that makes this happen. Limited to a maximum of 25 people, they allow visitors to have a good view of the plants.

A tour of the gardens in February was always going to be a little hit and miss in terms of the weather, but we were fortunate enough to arrive just as the rain stopped, so were able to enjoy the tour without getting soaked through!

As we enter through the front meadow, the area is full of Crocus tommasinianus, Crocus flavus and various forms of Crocus chrysanthus. Of course there are snowdrops everywhere. Our guides introduced us to the wide range that are cultivated here, from the common (but no less lovely) Galanthus nivalis, to G. Atkinsii and G. S. Arnott which are all doing fabulously well, as well as the less common G. Diggory and G. Washfield Colesbourne. We all peered at the diminutive G. Wendy’s Gold in a corner, sheltered by a wall and still tiny enough that if it wasn’t pointed out, you might walk past it! Some of the differences between the types are so small: those with an upturned tepal and look like little helicopters, while G. Diggory is plump and round.

January 2025 Talk: Succession Planting for a Long Season

Our first meeting of 2025 was very well attended. The speaker and the topic obviously attracted a good audience. The Show Table received a good selection of displays, with Jean’s a worthy winner of Best on the Table.

Our speaker, Fergus Garrett, the highly influential plantsman and horticulturalist, has been Head Gardener at the internationally acclaimed Great Dixter Garden in Northiam, East Sussex since 1993 and is the CEO of the Great Dixter Charitable Trust. He gave an excellent, wide-ranging talk on how to keep our gardens looking vibrant and spectacular all the year round. He explained how to plant for a long flowering season with plants co-existing in one place, but performing at different times. He used photographs of the spectacular gardens at Great Dixter to illustrate his points. He said Great Dixter had the advantage of scale and greenhouses but it is possible to scale down what they do at Great Dixter and use their scheme in our own gardens with minimal labour.

He particularly used the magnificent long border at Great Dixter as an example of how to plan a long flowering season. How to use structural under-planting, interlaying and interplanting with bulbs, self-sowers, perennials, clumps of bedding plants and climbers.

Pat’s Jobs for October 2024

1. Watch out for Cabbage White caterpillar on your Nasturtium: at our allotments they appear to be the new delicacy which they are devastating and they look like the only butterflies that are thriving.

Cabbage white caterpillars on nasturtiums

2. Make sure to plant lots of butterfly-friendly plants next year like Sweet Rocket, Scabious, Honesty and others. The butterfly count showed that butterfly numbers are very much down this year and we desperately need them. Please ask me for Honesty seeds if you want some.

Asters for Butterflies — Scabious for butterflies and bees