Answer:Pieris japonica prefers filtered sunlight or partial shade and acidic, well-draining but moisture retentive soil. If the foliage is yellowish, the soil conditions aren't quite right for it. Try feeding with an acid-based fertilizer (such as for rhodies or camellias), in amounts recommended on the label. You might also top-dress the soil beneath the plant with a little peat moss to help acidify the soil.
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