Before planting, soak plants well so that the roots are wet. After shaking the excess soil from the roots, place each plant in a crack between the concrete steppingstones, anchoring it with the bent wire. Reserve the excess soil. Place the reserved soil around the roots. Once the plants are where you want them, gently squeeze the concrete back together.
Maintenance is as easy as occasionally hosing off the sidewalk.
It will withstand some foot traffic and gives off a lovely fragrance when crushed. Creeping thyme requires full sun or partial shade and less water than Mexican heather. Once you're finished laying out the steppingstones and planting, pour potting soil over the pathway, and sweep it into the cracks. This will fill any voids and provide plenty of growing medium for your plants.