Why does your Salvia sclarea have fine webbing? Diagnose the cause and fix it with our step-by-step guide.
Spider mites thrive in the warm, dry conditions often experienced by Salvia sclarea. They pierce the plant cells to feed on sap, leaving behind fine silk webbing as they create protective colonies on the undersides of leaves.
As a perennial herb, Clary Sage is highly susceptible to these mites during periods of low humidity. The webbing often progresses from fine strands to dense clusters that can eventually cause leaves to turn yellow and drop.
While not a direct biological cause of webbing, extremely dry air can cause fine, hair-like structural breakdown in some Salvia species' foliage, which may be mistaken for mite silk.
Your plant might also be experiencing one of these issues:
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