There are plants that are just susceptible to vog and that includes sage. Vog is volcanic fog/smog and is comprised of sulfuric acid and other sulfates when carbon dioxide that the volcano emits mixes with water and oxygen. Halemaumau Crater is just 3 miles from where I live (as the crow flies) so you can imagine that we get vog every now and again. One day this week tho', it settled like fog and stuck around for a bit.
My sage had been growing really well with the rest of my herbs in my garden bed but then one vog event and the leaves shriveled and died! The other herbs got it too but the sage got hit the worst. Anyone from Volcano have any suggestions on protecting delicate plants from vog?