The Q&A Archives: Buddelia Bush Yellowing

Question: I have 3 buddelia bushes and they all seem to have the same problem.They were planted last year and did wonderful this spring I pruned them as should and now I think there is something wrong with them.Only reason I say this is a few years back I had the same problem with a buddelia bush could not figure out what was wrong with it I even went to nurserys and asked the experts and it still died. However the ones I'm speaking of now are not dead yet they seem to be yellowing from the bottom up. I've looked in ever book to see if I could find and nothing resembles it.Please help I'm at my witts end and they are my favorite shrub.

Answer: These plants are frequently described as being more or less pest and disease free. However, there is a reported possibility of rootknot nematode in southern-grown stock that could cause the symptoms. Another possibility is that the plants were allowed to become potbound at some stage of the production process and the resulting encircling roots are now beginning to strangle the plant. In both cases, the only way to tell is to dig up the plant and look at the roots and see. You might also wish to consult with your county extension; perhaps with a visual inspection or a plant pathologist could determine the cause of the yellowing for you. Finally, poor drainage and saturated soil could also cause yellowing from the bottom up. If there has been rain, make sure you are not also watering the plants to create excessively wet soil. I'm sorry I can't give you a more specific answer, but maybe this will help you troubleshoot.

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