On paper I didn't think I'd like this garden - I just don't do minimalist - but in fact, all those clean lines and tiered hedges just acted as a backdrop for two blocks of wonderfully rich planting that totally took my breath away.
Here's a rollcall of all those lovely, lovely flowers he's used: take it away and do it at home (though give the plants a bit more space, perhaps ;D)
Paeonia 'Buckeye Belle'
Aquilegia vulgaris var. stellata 'Ruby Port'
Astrantia major 'Claret'
Astrantia 'Hadspen Blood'
Iris 'Black Swan'
Foeniculum vulgare 'Giant Bronze'
Salvia nemorosa 'Caradonna'