Answer #1 ·
Maple Tree's Answer · Hi Ryan-If these Laurels have done well in the ground for 5 years and now many of their leaves are yellowing and dropping it is most likely due to some transplant shock. If there is no apparent spotting or damage to the leaves we can most likely rule out insect damage causing the yellowing. Laurels like many shrubs don't like being moved and the larger they are the slower they may recover from transplant shock. It is likely that some of the roots may have been cut or damaged. When this happens many plants will put their energy into developing new roots to support the shrub again at the expense of new foliage. Leaves not supported well will yellow then drop. At this time of year it is also normal for many evergreen shrubs to shed some of their older leaves which will turn yellow and drop. Your yellowing leaves may be happening because of these two reasons. This type of transplant shock is not abnormal and once the plants start to re-establish new roots and become acclimated to their new location the dropped leaves will be replaced by new leaf budding. If the shrubs are quite large it would help to prune them down somewhat giving the plants less foliage to support at this time. Yellowing leaves can also be an indication or too little or too much water. Cherry laurels do not like to be kept too wet. Over watering can saturate the soil suffocating the plant, not allowing the roots to get enough oxigen and other nutrients. Of course not enough water or drought conditions can harm a newly planted laurel. Keep the soil moist but never too wet or dry. A slow deep watering once or twice a week during the first summer making sure the entire root ball is moistened should be enough. Short daily waterings is usually not enough to soak the entire root ball. One the plants are established again in their new location these plants a quite drought resistant. Besides keeping the soil moist but not wet you want to make sure the shrubs were planted at the same depth or level with the sourrounding soil as before. Transplanting the root balls below grade can also suffocate the roots depriving them of oxygen. Planting too deep can also cause rotting of the roots in time. As you said the plants were transplanted just a few weeks ago and since then the yellowing leaves have appeared. Because of this I'm assuming some transplant shock and or possibly too much water may be the cause of the yellowing and dropping of leaves. If you hadn't done so when transplanting your shrubs you can water with a mix of water and root stimulators. Root stimulators contain nutients that will help to develop new root growth. Root stimulators can be purchase at most nurseries and garden centers.
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