Troubleshooting
Hydrangea 'Let's Dance Rhythmic Blue' problems — and how to fix them
Hydrangea 'Let's Dance Rhythmic Blue' (Hydrangea macrophylla 'Let's Dance Rhythmic 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.
Wilting in heat
Large soft leaves lose water rapidly; water deeply in the morning and provide afternoon shade in hot climates.
Poor rebloom
Insufficient watering, fertilising, or light can reduce the repeat-blooming characteristic; ensure all three are optimal after the first flush.
Frost damage to old-wood buds
First flush may be lost to late frosts, but new-wood rebloom usually compensates; protect with fleece in frost-prone areas.
Colour drift to pink
Soil pH creeping higher shifts blue to pink; top-dress with aluminium sulphate or use ericaceous compost in containers.
Powdery mildew
Affects foliage in dry periods; maintain consistent soil moisture and improve air circulation.
Prevent hydrangea 'let's dance rhythmic blue' problems before they start
Most hydrangea 'let's dance rhythmic blue' issues are care-mismatch, not bad luck. Dial in the basics:
Hydrangea 'Let's Dance Rhythmic Blue' problems — FAQ
Why is my hydrangea 'let's dance rhythmic blue' wilting in heat?
Large soft leaves lose water rapidly; water deeply in the morning and provide afternoon shade in hot climates.
Why is my hydrangea 'let's dance rhythmic blue' poor rebloom?
Insufficient watering, fertilising, or light can reduce the repeat-blooming characteristic; ensure all three are optimal after the first flush.
Why is my hydrangea 'let's dance rhythmic blue' frost damage to old-wood buds?
First flush may be lost to late frosts, but new-wood rebloom usually compensates; protect with fleece in frost-prone areas.
Why is my hydrangea 'let's dance rhythmic blue' colour drift to pink?
Soil pH creeping higher shifts blue to pink; top-dress with aluminium sulphate or use ericaceous compost in containers.
Why is my hydrangea 'let's dance rhythmic blue' powdery mildew?
Affects foliage in dry periods; maintain consistent soil moisture and improve air circulation.