posted 6 years ago
Strawberries have done well at the feet of my grapes, at least for the first several years so far. I would agree with Jan, most italian or french herbs will likely do well and benefit the vines. If you have rich soil you could also do greens, which would benefit in summer from the vines' shade. Most plants with small, simple white or yellow flowers (arugula, brassicas, yarrow, queen annes lace etc), will attract beneficial insects to control pests. Tansy is an invasive to the nw but it also controls problematic nematodes. Near a driveway, planting on native american rootstock is beneficial to avoid phylloxera problems that plague european grapes' roots.
This is all just my opinion based on a flawed memory