Oleander is a very sturdy plant that is also very attractive. It does not require a lot of attention to grow, but there is still a chance a problem can develop with it. If the leaves begin to turn yellow, then there may be a problem known as a leaf scorch. This is a common problem with this kind of plant.
Key Takeaways:
- Oleander is a sturdy, attractive plant that grows happily with very little attention but, occasionally, problems with oleander plants may occur.
- Improper watering, either too much or too little, may be the cause for yellowing oleander bushes.
- Leaf scorch is a bacterial disease spread primarily by small, sap-sucking insects known as sharpshooters.
“Improper watering, either too much or too little, may be the cause for yellowing oleander bushes. Although oleanders are highly drought tolerant, they benefit from irrigation during long dry spells. However, too much water can harm the plant and may be to blame for an oleander with yellow leaves.”
http://www.gardeningknowhow.com/ornamental/shrubs/oleander/yellowing-oleander-bushes.htm