Using Dianthus as a perennial border

Question

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?

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Answer 1

Though Dianthus is a pretty perennial, I would not consider it low maintenance.

https://www.gardeningknowhow.com/ornamental/flowers/dianthus/growing-dianthus-plants.htm

I would suggest a flowering shrub, suitable to your growing zone.

https://www.gardeningknowhow.com/planting-zones/

Visit local garden centers and greenhouses for some ideas.