|I planted these shrubs about 6 months ago and the leaves are turning yellow. I have been watering,added slow release furtilizer and mulch.|
Yellowing of older foliage on the plant is a sign of dry soil conditions for a period of time or a brief period of soggy wet soil. It can also be an indication of root injury or a lack of nitrogen. Yellowing of new growth indicates high pH and often high phosphorus levels. It is corrected by acidifying fertilizers and products to supplement the iron levels. Soggy soil conditions can also lead to temporary iron deficiency symptoms. Try to maintain moderate moisture in the soil.
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