There are dozens of low ground covers and creeping perennials resilient enough to withstand being walked on. Notice how much (or little) the pathway you're thinking of planting is used and choose the right perennial for your pathway.
Eremurus robustus The tall flower appear late spring to early summer Pacific Bulb Soci attention to drainage is critical need sun and fertile soil, and without cool to cold winter temperatures they do not flower well. The rootstock should be planted shallowly and care therefore needs to be taken to protect it and the emerging shoota can be quite tall
Eremurus robustus 3m x 1.2m full sun, well drained, variety of soils