Hydrangea macrophylla 'Zaza'
black steel hydrangea
- Position: full sun or partial shade
- Soil: moist, well-drained, moderately fertile, humus-rich soil
- Rate of growth: average
- Flowering period: July and August
- Flower colour: blue (becoming pinker on alkaline soils)
- Other features: The flower-heads make excellent dried flower arrangements
- Hardiness: fully hardy
Large rounded flowerheads form on the lustrous near-black stems of this brand new hydrangea from midsummer. Emerging a vibrant shade of green, but turning to blue (or pinker shades if grown on neutral to alkaline soils) as they mature, before taking on russet tones in autum. Creating a magnificent informal hedge, this recently introduced shrub will also make a fine spectacle of itself in a mixed border or large pot.
- Garden care:To enhance flowering prune in spring, cutting back the flowered stems to a strong pair of buds below each flower-head. Once established, remove a quarter to a third of the old shoots to the base of the plant.
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