|I have a bed in front of house with plenty of sun. I have planted Pentas there and every few months I have to replace 2 or 3 (out of a 12) plants because the leaves turn yellow It does not happen to all the plants at once and it is in different areas of the bed. Prior to that that they flower beautifully. Any suggestions?
|The soil around your pentas may be staying a bit too wet. This excludes oxygen from the roots, causing them to die. As roots are lost the top turns yellow and starts to die too. Even without soggy soil, you can run into some root rots that will take out the plants. There is not a practical control for these other than maintaining proper soil moisture levels.
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