
Water lilies that are affected by crown rot, can die off in entire clumps. Affected plants turn yellow and produce few flowers.
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Question from
Hi,
leaves on my Rheum Palmatum are turning yellow and Redon patches. new leaves are yellowed and growth has slowed overall. should I lift it, add grit to the soil & replant or it it too late? Also unidentified insect (see photo) has appeared on underside of leaves. I have picked these off - are they bad for the plant?
Thanks