Sunflower Plants

Sunflower Leaf Stems Are Splitting Open

melissa9992 added on June 28, 2011 | Answered

The stems of the leaves on my sunflower plant are splitting open with these small black coffee ground type things piled up coming out of it. What the heck is it, and what can I do to get rid of it?

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Certified GKH Gardening Expert
Answered on July 4, 2011

This can happen when watering is not even. Normally you see this when you have a long period of dry heat followed by a sudden large amount water, either from manual watering or a rainfall.

The plants will be fine and should keep growing.

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