Ok, I'm running on potentially flawed memory here, but, Woodland Scenics had some fields and road verges as complete kits (no base, though(, but I'm remembering those as HO only.
The contents were a box of turf, something for the field, white metal tree forms, and foilage material, with various kinds of "dirt."
Kind of cool kits, if memory serves.
Hmm, now I'm wondering if it was H&R that did 1/32 road bits. Might have been Historex, too, for that matter. Pretty sure is was not I&R.