The dual aspect terraces for this penthouse are planted to look good for 12 months of the year.

Ornamental grasses stir in the slightest breeze and the star performer is Verbena bonariensis. Flowering from June to November, rarely still, it dances before your eyes in a shimmering purple haze. Tiny shiny clusters of nectar–filled mauve flowers make it an absolute butterfly magnet.

“Declan's expert knowledge and wonderful eye for plants and design has created fantastic terraces for us in our London flat. On the south side it's all succulents and silvers so it has a Mediterranean feel. On the north side it's willowy birches and grasses. It's a constant pleasure.”