We planted a thuja hedge last September. Until now, it looked really healthy. However, more and more plants are turning brown over time. The brown plants are very easy to pull out. It seems like the roots haven’t taken hold at all. What could be the reason for this? Especially since the plants were previously quite green and had grown well.
N
nordanney27 Jun 2021 21:35Be glad. Thuja smells bad and reminds of a cemetery. The soil underneath also suffers.
Reasons for browning:
Too wet
Too dry
Overfertilized
De-icing salt on the hedge during winter
Pests
Reasons for browning:
Too wet
Too dry
Overfertilized
De-icing salt on the hedge during winter
Pests
nordanney schrieb:
Be glad. Thuja smells bad and reminds you of a cemetery. The soil beneath also suffers.
Reasons for browning:
Too wet
Too dry
Over-fertilized
Road salt on the hedge in winter
PestsThe cemetery look is a matter of taste. So far, we haven’t noticed any bad smell – we would like to keep our hedge.
H
hampshire27 Jun 2021 21:47There is aphid infestation on arborvitae, but it usually does not cause dieback. If the soil is too acidic, apply lime. In case of waterlogging, loosen the soil and install drainage. The pine processionary moth would also be problematic.
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