Troubleshooting
Japanese Laurel problems — and how to fix them
Japanese Laurel (Aucuba japonica) is generally forgiving once you match its basics, but a few issues come up again and again. Here is what each one looks like, why it happens, and the fix.
Leaf scorch from direct sun
Exposure to direct sunlight — even briefly through a south-facing window — causes brown, bleached patches and scorched leaf edges; move to a position with bright indirect or low indirect light only.
Root rot (Phytophthora)
Waterlogged soil allows Phytophthora root rot to develop rapidly, causing wilting, blackened stems, and canopy collapse; ensure excellent drainage and allow the soil surface to dry between waterings.
Scale insects and aphids
Soft scale insects and aphid colonies appear on stems and leaf undersides, excreting honeydew that triggers sooty mould; wipe scales off with a damp cloth and treat aphids with insecticidal soap or neem-based spray.
Prevent japanese laurel problems before they start
Most japanese laurel issues are care-mismatch, not bad luck. Dial in the basics:
Looking for japanese laurel in general rather than its problems? Read the full japanese laurel care guide — light, water, soil and feeding.
Japanese Laurel problems — FAQ
Why is my japanese laurel leaf scorch from direct sun?
Exposure to direct sunlight — even briefly through a south-facing window — causes brown, bleached patches and scorched leaf edges; move to a position with bright indirect or low indirect light only.
Why is my japanese laurel root rot (phytophthora)?
Waterlogged soil allows Phytophthora root rot to develop rapidly, causing wilting, blackened stems, and canopy collapse; ensure excellent drainage and allow the soil surface to dry between waterings.
Why is my japanese laurel scale insects and aphids?
Soft scale insects and aphid colonies appear on stems and leaf undersides, excreting honeydew that triggers sooty mould; wipe scales off with a damp cloth and treat aphids with insecticidal soap or neem-based spray.