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Hi there, we planted a Corokia Gentys Green hedge (10 in total) about 2 months ago which was to replace a 2 year old Pheblium Billarderi hedge that had started dying off. It seems that one of the Corokia bushes has died, initially we thought it was due to lack of water but none of the other bushes looked parched or are showing signs of dying or wilted/dried leaves. Our concern is that there is something in the soil which was the reason for the Pheblium dying.

We need to replace the Corokia otherwise there will be a gap in the hedge but don’t want the same fate to happen to this plant. Is there anything we can do to the soil beforehand, should we wait for a few weeks/ months before planting- any advice/suggestions would be appreciated.

Regards
Norma

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Hi Norma, This is a tricky one! Phebalium often suffer from a root fungal which can cause dieback/death (often random) especially in more warmer areas. Corokia can suffer from the same problem where an odd one can curl up its toes without any obvious reason. Corokia can also be a bit sensitive when planting, so if it died fairly quickly after planting the roots might have got damaged during planting. They hate wet feet, pull the dead one out and check the moisture content around the plant/roots (this will also tell you if it was too dry), as often corokia will not show that they are dry until it’s too late. To combat any potential Fungal problems in the soil, you can either drench the soil with Thiram or Trichoderma Granular rootmate, also ensure that you gently trim the corokia regularly and keep an eye open for scale problems. Thanks the Palmers Team

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