Achillea 'Anthea' and....
On the East side of our house, we have sort of a yellow/chartreuse/red/burgundy theme going. Near a Bloodgood maple I have planted 3 'anthea' Achillea but they are very lonely and crying out for companions. What would you plant with these? I don't mind adding dark purple or white to the garden, but no pink. I saw a nice picture recently of a yellow Kniphofia and Achillea but can't remember what else they planted with it.