Using Dianthus as a perennial border
The foundation shrubs can be seen in attached photo. Would like to use Dianthus as a border with walkway. We have deer. I want a border with little maintenance, that will last 10 years or more - Is Dianthus a good choice?
Though Dianthus is a pretty perennial, I would not consider it low maintenance.
I would suggest a flowering shrub, suitable to your growing zone.
Visit local garden centers and greenhouses for some ideas.