Water
Hydrangea cinerea thrives with consistent moisture. Water deeply when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Reduce watering during winter dormancy.
Also known as Hydrangea
Ashy Hydrangea (Hydrangea cinerea) is a deciduous shrub native to the southeastern United States, known for its large, flat-topped clusters of white to greenish-white flowers in summer.
At-a-glance light, water, soil, and growing conditions from plant data
Prefers partial shade to full sun.
60% intensity
Protect from intense afternoon sun in hot climates.
Keep soil consistently moist.
70% intensity
Water deeply when top inch of soil is dry.
Prefers moist, well-drained soil rich in organic matter. Tolerant of a range of soil types but dislikes waterlogged conditions.
50% intensity
Thrives in moderate temperatures.
60% intensity
Ideal growing range is 15-24 °C.
Outdoor
50% intensity
Feed in early spring.
50% intensity
Use a balanced, slow-release fertilizer.
Safety information from plant toxicity data
| Attribute | Value |
|---|---|
| Toxic for humans | No 0/5 intensity |
| Toxic for pets | No 0/5 intensity |
| Edible | No |
Key traits and growing stats from plant data
Watering, pruning, propagation, and repotting details from plant data
Hydrangea cinerea thrives with consistent moisture. Water deeply when the top inch of soil feels dry, ensuring good drainage to prevent root rot. Reduce watering during winter dormancy.
Prune in late winter or early spring before new growth begins. Remove dead or damaged stems and thin out crowded branches. Hydrangeas bloom on old wood, so avoid heavy pruning after new growth appears.
Easily propagated from semi-hardwood cuttings taken in mid-summer. Root cuttings in a moist, well-draining medium in a warm location. Can also be propagated by division of clumps in early spring.
Repotting is generally not necessary for established garden plants. Container-grown specimens may need repotting every 2-3 years into a slightly larger pot with fresh potting mix.
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Monthly activity intensity for bloom and fruit across both hemispheres.
Flowering & fruiting calendar
Flowering & fruiting calendar
Photos of Ashy Hydrangea (Hydrangea cinerea)
Where Ashy Hydrangea (Hydrangea cinerea) is found
Density
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Common names and botanical synonyms
Botanical classification
| Rank | Name |
|---|---|
| Kingdom | Plantae |
| Division | Tracheophyta |
| Class | Magnoliopsida |
| Order | Cornales |
| Family | Hydrangeaceae |
| Genus | Hydrangea |
| Species | Hydrangea cinerea |
Similar in genus Hydrangea
Answers based on plant encyclopedia data
