Hydrangea macrophylla — French hydrangea
⚠️ Toxic to pets

Plants

French hydrangea care: light, water & problems

Scientific name: Hydrangea macrophylla · Common name: French hydrangea

French hydrangea: dappled shade or gentle morning sun. Copious and consistent watering using rainwater or soft water.

Editorial revision:

Care at a glance

Light

Dappled shade or gentle morning sun. Hot afternoon sun scorches delicate foliage and fades the blooms quickly.

Watering

Copious and consistent watering using rainwater or soft water. Demands high soil moisture and wilts dramatically at the first sign of drought.

Conditions vary with pot, season and location. Always check the mix and your plant's response.

How to identify it

Deciduous shrub with large, toothed, broadly ovate green leaves and massive mophead or lacecap inflorescences in pink, blue, or white.

Environment and placement

Cool, moist, sheltered outdoor microclimates. Requires acidic soil with organic matter to produce and maintain rich blue flower heads.

✨ Tap the plant and watch it respond
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Potting mix and feeding

Keep drainage open and observe how long this particular pot takes to dry.

There is no universal feeding dose: fertilise only during healthy growth, following the label and a confirmed identification.

Problems to check

Severe wilting when soil dries out; lime chlorosis (yellowing foliage with dark green veins) from alkaline tap water.

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Specialized diagnostic guide

What to check when your plant droops

Read full guide →

Cats and dogs

ASPCA lists this species as toxic to cats and dogs. Keep pets from chewing it; contact a veterinarian if ingestion is suspected.

ASPCA

Common question

How do you revive a severely wilted hydrangea?

Immerse the entire container in a bucket of water until bubbles stop rising, then place it in cool shade; stems will perk back up within hours.

Botanical source

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