Description
Plant Overview
Hydrangea Tree (Hydrangea paniculata) is a fast-growing deciduous shrub or small tree native to Japan and China. Its fountain-shaped branching, dark green foliage, and large cone-shaped panicles of white flowers (maturing to pink) make it highly ornamental. Ideal for specimen plantings, mass displays, shrub borders, and cut flowers.
Mature Height & Spread
- Height: 10–20′
- Spread: 10–20′
- Form: Fountain-shaped habit, branches cascade from central point
- Growth Rate: Fast
- Texture: Coarse
Hardiness Zones
USDA Zone 3–8
Sun Requirements
- Full sun to partial shade (best flowering in full sun)
Soil Preference
- Moist, well-drained soils preferred
- Adaptable to a range of soil conditions
Water Needs
- Moderate; maintain consistent moisture during establishment
Landscape Uses
- Specimen or focal point
- Groupings and mass plantings
- Shrub borders
- Showy flowering effect for gardens and landscapes
- Cut flowers
Foliage
Leaves are opposite (whorled at tips), elliptical, 3–6″ long, dark green, serrated margins, and pubescent on the underside near veins. Petiole up to 1″ long. High-quality, medium-texture foliage.
Autumn Foliage
Not ornamentally significant; leaves typically fade without strong color display.
Flowers
Large, cone-shaped panicles of white flowers maturing to pink. Bloom mid-July through September. Panicles up to 8″ long and 6″ wide. Combination of showy sterile flowers and less conspicuous fertile flowers. Strongly scented and very showy.
Fruit
Dry capsules; not ornamentally significant.
Bark
Stout stems, reddish-brown; bark shreds with maturity, gray-brown in color.
Planting Instructions
- Plant in full sun to partial shade, preferably with full sun for best flowering.
- Ensure moist, well-drained soil.
- Prune in winter or early spring to maintain shape and promote blooms on new wood.
- Transplanting is easy; adaptable and urban tolerant.
Maintenance
- Relatively pest and disease-free.
- Monitor for leaf spot, powdery mildew, scales, and mites.
- Winter or early spring pruning recommended to maintain shape and encourage flowering.
Identification Features
- Opposite leaf arrangement, whorled at tips
- Large cone-shaped white flowers, maturing to pink
- Fountain-shaped branching habit
- Stout reddish-brown stems with shredding gray-brown bark
Propagation
- By softwood cuttings
- By seed
Botanical information adapted from the University of Connecticut Plant Database, Mark H. Brand, Department of Plant Science and Landscape Architecture
