Pavers create lovely walkways through our gardens, but why not make the garden part of your walkway?! There are many plants that will thrive between pavers, sending leaves and flowers through the cracks as they spread their roots under the protective mulch of the stones. Which ones you choose will depend on the size of the spaces between the stones, and on whether you want just a bit of green fuzz or something more like a rock garden.
In the latter case, you might like to try old-fashioned pinks, Dianthus deltoides. In early summer, this long-lived perennial sends up green wands topped with fragrant flowers in shades of red, pink, and white. But they’re equally valuable for their sturdy tufts of narrow, dark green leaves, which start early in spring and stay good looking for a long time. An alternative is sweet alyssum, an annual that self-sows so reliably that it’s effectively perennial. Alyssum can have a somewhat weedy appearance; the stems are lax and the leaves are pale, but it’s fragrant white, pink, or purple flowers will keep coming all summer as long as you shear it back from time to time.
If you want the low, mat-like look and would like to have fragrance to boot, choose Corsican mint (Mentha requienii), which has tiny, round intensely fragrant leaves, or one of the various creeping thymes (Thymus serphyllum). T.s. ‘Coccineus’ has crimson flowers and dark foliage, which T.s. ‘Albus’ has lighter green leaves and dainty white flowers in early summer.
Don’t forget that not all paved places are created equal. Where conditions are hot and dry, the pinks and thymes will thrive, the alyssum will be ok, and the mint will fade away. Should the pavement be in damp shade, on the other hand, the mint will be happy, the heat lovers won’t, and you could also think about using moss. It is a slower grower that will take much longer than plants to fill up and spaces, but if conditions are right for it, the effect can be beautiful.