Troubleshooting
Aptos Blue Redwood problems — and how to fix them
Aptos Blue Redwood (Sequoia sempervirens 'Aptos Blue') 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.
Needle browning in heat or drought
Aptos Blue is sensitive to dry, hot summers away from its coastal home. Consistent deep watering and mulching are essential.
Scale insects
Various scale insects can attack redwoods. Treat with horticultural oil in spring.
Root competition
Redwood surface roots can compete aggressively with nearby plantings. Provide adequate spacing.
Sooty mould from aphids
Aphid honeydew supports sooty mould growth on foliage. Control aphids with insecticidal soap.
Frost damage to young trees
New growth can be damaged by late spring frosts. Protect young trees with fleece if a frost is forecast.
Prevent aptos blue redwood problems before they start
Most aptos blue redwood issues are care-mismatch, not bad luck. Dial in the basics:
Aptos Blue Redwood problems — FAQ
Why is my aptos blue redwood needle browning in heat or drought?
Aptos Blue is sensitive to dry, hot summers away from its coastal home. Consistent deep watering and mulching are essential.
Why is my aptos blue redwood scale insects?
Various scale insects can attack redwoods. Treat with horticultural oil in spring.
Why is my aptos blue redwood root competition?
Redwood surface roots can compete aggressively with nearby plantings. Provide adequate spacing.
Why is my aptos blue redwood sooty mould from aphids?
Aphid honeydew supports sooty mould growth on foliage. Control aphids with insecticidal soap.
Why is my aptos blue redwood frost damage to young trees?
New growth can be damaged by late spring frosts. Protect young trees with fleece if a frost is forecast.