Time to act:
Jun, Jul, Aug, Mar, Apr, May, Dec, Jan, Feb, Sep, Oct, Nov
Rust fungus is the curse of hollyhocks. The undersides of the leaves are often peppered with bright yellow or orange-red rust spots with corresponding beige-yellow splodges on the upper surface. Eventually, it affects the whole plant, with leaves starting to fall away from the base. In severe cases the stem becomes infected too, and the whole plant may die.
Orange-brown spots on foliage and stems. Leaves may die and drop from plants, weakening the plant and resulting in death in extreme cases.
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