Hello,

we've had an oleander for almost 20 years and the last 7 years or so, its leaves start getting yellow very early in summer and fall off but the plant still flowers. The leaves that stay on are not so shiny and do not look very healthy. The plant is in a pot outside during summer in full sun and we water it regulary. Sometimes the soil gets dry but not so often. We do not renew the soil often (last time was at least 6 years ago since the plant is about +- 3 meters (I guess that is 10 feet?) and very heavy to move. Can someone explain what is going on? It would be a shame to lose such an old plant.

thank you

yves