Yellowing Daylillies - Knowledgebase Question

baltimore, Ma
Question by amckeever9
June 30, 2010
Every year my daylillies leaves begin yellowing and dying creating an unsightly mess, while others in the neighborhood look robust. Should I be concerned? What causes it?


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Answer from NGA
June 30, 2010

0

Yellow leaves can be caused by many things including lack of nitrogen, insufficient light, water-logged soil (plant roots need oxygen to thrive), dry soil, or iron deficiency. If the older bottom leaves are yellow, but new growth is green, it's usually a lack of nitrogen. If new leaves are yellow, with green veins, it's usually a lack of iron. (Lack of nitrogen is a more common problem than lack of iron.) Soil should be kept moderately moist (but not wet). Try to isolate each of these possibilities one at a time to determine the problem. It could also be that they are too crowded and could benefit from division if this hasn't been done for 3 to 4 years. I hope this info helps!

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