We own an arboretum that we keep open to the public. we would like to stain to non-gloss moss green a new bright white cement sidewalk installed 2 years ago by our town. this sidewalk is lined thickly with plant material- daylilies, ornamental grasses, conifers.are there any products you'd recommend that would allow the plants to safely stay in situ? and how often might we have to refresh the treatment? we are looking for a transparent natural looking moss green surface.thank you so much for your help.

best,

mindy