Photography by Jim Powell for Gardenista

Sam McKnight’s expertise as one of the fashion world’s top hairdressers keeps him in close contact with glamorous people but far away, sadly, from his London garden. One year, in between shows, he told us about his growing dahlia collection:

The foliage and height of Cosmos bipinnatus ‘Purity’ complement the paler dahlias.

A happy specimen from the ‘Dahlia pom pom mixed’ bag. Its tubers arrived with other mixed bags of ‘dinner plate’, ‘cactus’ and ‘honka’ dahlias.

The wonderfully named dahlia ‘Cabana Banana’ (Right), next to ‘Café au Lait’.

Dahlia ‘Purple Gem’, one of the many hundreds of dahlias planted this year in Sam’s garden.

Dahlia ‘Worton Blue Streak’.