I\’ve had my Japonica for at least 15 years, but this year part of the plants leaves and stems have gone brown and look dead. I
I'm not a keen gardener but I've tried to keep it well watered and put fresh compost on it every year. Any ideas as to what needs to be done would be greatly appreciated.
Certified GKH Gardening Expert
It probably has a fungal infection, but it also might have been caused by the soil pH. They prefer acidic soil, and will benefit from a feeding with acid-lovers fertilizers.
Applying 1/4 cup of DOLOMITIC LIME, and a tablespoon of WETTABLE SULFUR will take care of the fungal issue, as well as help to adjust the pH.
This article will help you to care for the shrub: https://www.gardeningknowhow.com/ornamental/shrubs/japanese-andromeda/grow-japanese-andromeda.htm