About Sebastoni
Gardens designed with both head and hand
I’m Christina. I design gardens for homes in London, the Welsh Marches and the countryside in between – spaces that feel considered from the ground up and connected to the way you actually live.
My background is not a typical one. Before retraining as a garden designer, I spent years in a field that required rigorous analytical thinking – working with numbers, managing complexity, making decisions with real consequences. That discipline didn’t leave when I changed direction. It shapes how I approach every project: methodically, with a clear sense of what matters, and with a careful eye on what things cost and what they’re worth.
My background is not a typical one. Before retraining as a garden designer, I spent years in a field that required rigorous analytical thinking – working with numbers, managing complexity, making decisions with real consequences. That discipline didn’t leave when I changed direction. It shapes how I approach every project: methodically, with a clear sense of what matters, and with a careful eye on what things cost and what they’re worth.
01 Training
Trained at the English Gardening School
I studied at the English Gardening School, based at the Chelsea Physic Garden, graduating with double distinction. The training gave me a strong technical foundation – from reading a site and understanding soil and light, to drawing up planting plans and working alongside architects and contractors. It’s the kind of knowledge that only comes from being properly taught, in one of the finest garden settings in the country.
02 The approach
Contemporary structure, naturalistic at heart
My gardens tend to be contemporary in their layout – clear lines, considered proportions, materials chosen to age well alongside the house. But the planting is never rigid. I’m drawn to soft edges, to plants that move in the wind and change through the seasons, to a garden that feels alive rather than arranged.
The balance between the two shifts depending on the site and the client. A London townhouse calls for something different from a property in the Welsh countryside. What stays constant is the thinking behind it – and the intention that the garden feels right from every angle, in every month.
The balance between the two shifts depending on the site and the client. A London townhouse calls for something different from a property in the Welsh countryside. What stays constant is the thinking behind it – and the intention that the garden feels right from every angle, in every month.
03 London & Wales
Two places, one way of thinking
I’ve lived in London for sixteen years and work extensively across the city. I also spend time regularly in Hay-on-Wye, where I take on projects in and around the area.
Moving between the two keeps my eye sharp. London sharpens the thinking around constraint – privacy, light, how to create genuine calm within a dense urban setting. Wales offers something else: scale, a softer relationship with the surrounding landscape, planting that has room to establish itself properly. Both inform how I design, wherever the project is.
Moving between the two keeps my eye sharp. London sharpens the thinking around constraint – privacy, light, how to create genuine calm within a dense urban setting. Wales offers something else: scale, a softer relationship with the surrounding landscape, planting that has room to establish itself properly. Both inform how I design, wherever the project is.