Euphorbia – Charlton and Blackheath Amateur Horticultural Society

What to look out for in the Old Pond Garden: March 2025

We hope you enjoy a spring walk around the walled gardens at Charlton House! Look out for:

Daffodil (Narcissus ‘Elke’)

Narcissus 'Elke' in the Old Pond Garden at Charlton House

A fragrant, small and early-flowering daffodil, you can spot Narcissis ‘Elke’ in the Peace Garden. It has pale petals and a creamy yellow trumpet. The name ‘Elka’ is apparently from a combination of the names of two ‘lady daffodil growers’: Elizabeth and Kate.

Wood spurge (Euphorbia amygdaloides var. robbiae)

Euphorbia amygdaloides var. robbiae (wood spurge / Mrs Robb's Bonnet) in the Old Pond Garden, Charlton House, March 2024

Wood spurge is in the Euphorbia family, so take care! If the stems are broken, they gush with a thick milky latex substance that can cause blisters on skin. They are handsome perennial plants, shade loving, with zingy lime-green flowers in late Spring and rosettes of glossy dark green leaves. Another name for this plant is ‘Mrs Robb’s Bonnet’ – we would like to see the hat that inspired that name!

April blog Euphorbia 2

I know we have had posts on euphorbias already, but these plants are such a delight in the month of April that I am adding yet more. The little Euphorbia Chameleon, below, self -seeds happily, but in such a delicate and restrained way that it is welcome everywhere I find it. In addition to this, it politely dies back and allows summer flowering plants to take over.

The Euphorbia below (amygdaloides purpurea) is a stunning contrast with the lime green flower head and the stems which are an intense dark red. It has seeded itself in the gravel path and I’m not entirely sure where it comes from.

In Euphorbia, flowers occur in a head, called the cyathium. Each male or female flower in the cyathium head has only its essential sexual part, in males the stamen and in females the pistil. The flowers do not have sepals, petals or nectar to attract pollinators, although other nonflower parts of the plant have an appearance and nectar glands with similar roles. Euphorbias are the only plants known to have this kind of flower head. It should also be noted that, when the stems are cut, they exude a thick white substance which is extremely irritating to skin.

And, of course, there is the magnificent Euphorbia Mellifera (Honey Spurge) which rightfully deserves its common name and is a delight to be near at this time of year when the scent fills the air. Every garden should have one – it keeps its shape well or can be cut back. Mine originally came from the garden of Jillian Smith, CABAHS ex-Chair, who many remember fondly. Jillian, if you are reading this – thank you!

Vija

March blog

Spurred by Kathy’s post on Euphorbia in the Old Pond Garden I have taken this photo of E. myrsinites which sits outside my back door all year round. As Kathy points out, Euphorbia are a large and adaptable genus and at this time of year are a real treat. I have found they do particularly well in my gardening conditions and now have several varieties.

In my front garden (such as it is) Euphorbia characias s. wulfenii is usefully seeding itself in a way which looks like I have planted it deliberately, but is actually nothing to do with me at all.

Vija

OPG Diary March 2022

Winter is over, swing in to Spring! The garden is waking up slowly, with Euphorbia amygdaloides robbiae showing signs of becoming a Star Plant. It’s rosettes of zingy lime green are unfurling and it really shines out in the sun.

These simple, unsophisticated plants, which rarely receive the recognition they deserve for all their efforts in growing and flowering, year in, year out, without asking for any help from anyone or anything, are among many unsung heroes of the gardening world.

Also showing off, Cornus mas or Cornelian Cherry in the Peace Garden, and lungwort, borage, rosemary, to name just a few.