bulbs – Charlton and Blackheath Amateur Horticultural Society

Pat’s 10 jobs for September 2026

Pat's Dahlias — Get more *Dahlia* flowers by regular deadheading,
make comfrey tea plant food, and learn from Beth Chatto’s dry garden

Comfrey ready to make comfrey tea — Get more *Dahlia* flowers by regular deadheading,
make comfrey tea plant food, and learn from Beth Chatto’s dry garden

1. Keep cutting or dead heading your Dahlias to keep the flowers coming, hopefully into October. Give them a weekly feed too.

2. It’s not too late to make some comfrey tea to feed your plants and veg. Just cut up handfuls of leaves and leave in a bucket with some water and a weight to hold it down. Try to cover the bucket as the smell is very unpleasant, then dilute 1/10 in water and aim at the base of plants you are trying to keep going.

3. I think this year we need to carry out a review of very dry areas in our gardens and replant with drought tolerant plants. If you made the visit to Beth Chatto her dry garden is an excellent example. I have a bank at the back of my garden and half of it looks very sad or even dead so I’ll be replanting some of it in the spring if things don’t come through.

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

Pat’s 10 jobs for June 2026

1. There’s still time to direct sow some annuals like Cerinthe, Nasturtium, Nigella and Calendula for late flowering. Remember to thin out once germinated for decent size flowers.

Cerinthe major 'Purpurascens' — Cerinthe (honeywort), Nigella (love in the mist) and Calendula (pot marigold) can all still be sown now

Nigella damascena (love in the mist) — Cerinthe (honeywort), Nigella (love in the mist) and Calendula (pot marigold) can all still be sown now

2. Lily beetles are rife this year so be vigilant as they can devastate in no time (and they enjoy fritillaries too).

Pat’s 10 jobs for May 2026

Lonicera americana in full flower for night-flying moths

1. At this time of year when the weather is warm early Dutch honeysuckle (Lonicera periclymenum) and Lonicera americana are a magnet for night-flying moths attracted by the spicy scent, so try growing one if you have the space.

2. If seedlings and cuttings are growing away well, put them outside during the day to harden off then bring them in at night if the weather is cold.

3. Iris are in spectacular full flower now, but be sure to keep their rhizomes free from weeds so they get baked by the sun which will aid flowering next year.

Irises in flower in a raised bed (but somewhat congested) — Glorious irises in flower – including Iris ‘Député Nomblot’

Iris 'Député Nomblot' in a friend's garden — Glorious irises in flower – including Iris ‘Député Nomblot’

Spring Show 2026 – classes to enter

The CABAHS Spring Show will take place on Monday 20 April 2026 and classes will be judged by John Hughes. Here’s a reminder of last year’s efforts!

Getting the 2025 CABAHS Spring Show set up and ready for judging — Spring Show 2025

Some of the 18 entries for Class 13: Narcissus 'Pipit' CABAHS Spring Show 2025 — Spring Show 2025

The classes you can enter this year are shown below, please have a go at as many as you like!

Resolutions for 2026

At our January meeting, members were asked to share – anonymously – their garden-related resolutions for the coming year. In addition, the CABAHS Committee put forward a suggestion for a CABAHS-wide resolution for 2026 (more on this in a separate post).

A fine, wise, and hopefully achievable range of planned actions were submitted, with members resolving to complete practical tasks that are easily put off or forgotten, right through to adjusting their attitudes / approaches to their gardens.

Some of the CABAHS members' resolutions for 2026

CABAHS Committee Members Resolution 2026: Seed Collection and Cuttings

Always a good start:

“I am going to actually go into my garden.”

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’.