When choosing perennials to pair together, there are a few key points to take into consideration. When I'm planning a border or flowerbed, I think of plants not as individuals, but try to visualise them in pairs as part of bigger groupings. This makes it so much more manageable.
As well as looking good together take into account some practicalities too. Right location is key, and the perennials you choose must be compatible, growing together whether that's in a sunny or shady spot, or somewhere in between. Take into account the space too by paying close attention to the mature height and width of your planting combinations. This ensures that one plant will not crowd out another.
