Plant Doctor Archive

My Edgeworthia is yellowing

I have two edgeworthia shrubs which have been planted side by side for about four months. One has developed very yellow leaves and the other is healthy and green. Both were planted with Magamp, in good loamy soil, which has been well mulched and watered.

Edgeworthias are attractive deciduous shrubs commonly called yellow daphne. They enjoy conditions similar to azaleas, rhododendrons, camellias and daphne — cool, moist, well-drained soil. They also enjoy the semi-shaded conditions those plants enjoy.

It would appear your edgeworthia turning yellow is showing autumn colour sooner than the other. I would not be concerned at this point. The plant will be dormant soon. Keep an eye on it next spring — if the new leaves are yellow, then it is likely to be a nutrient deficiency, which can easily be remedied.

Advice by Dr Dan Blanchon from Unitec's Diploma in Sustainable Horticulture and Bachelor of Resource Management.

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