A rounded shrub with rich green leaves. Huge globes of tightly packed, creamy white bracts that look like giant snowballs in late summer. Height and Spread 2.5m. Flowers July to September. Full sun/partial shade. Hardy.
Hydrangea arborescens ‘Annabelle’ is a deciduous shrub known for its striking, large, creamy white flower heads that bloom from mid-summer to early autumn. This hardy and low-maintenance plant thrives in a variety of conditions, making it a popular choice for gardens. With its lush green foliage and impressive floral display, Hydrangea arborescens ‘Annabelle’ adds elegance and charm to any landscape.
PLANTING and AFTERCARE GUIDE
Best Planting Time
Spring: The best time to plant Hydrangea arborescens ‘Annabelle’ is in spring when the soil starts warming up. This allows the roots to establish before the blooming season.
Autumn: You can also plant in early autumn, giving the shrub time to settle before winter dormancy, ensuring strong growth the following spring.
Site Selection
Sunlight: Hydrangea arborescens ‘Annabelle’ thrives in full sun to partial shade. A location with morning sun and afternoon shade is ideal for optimal flowering and leaf health.
Soil: Well-drained, moist, and fertile soil is essential for Hydrangea arborescens ‘Annabelle’. Incorporate organic matter like compost to improve drainage and soil quality. Avoid planting in areas prone to waterlogging.
Planting Instructions
Prepare the Hole: Dig a hole twice the width and the same depth as the root ball to allow the roots ample space to grow.
Soil Preparation: Mix compost or well-rotted manure into the soil to enhance fertility and drainage.
Planting: Position Hydrangea arborescens ‘Annabelle’ in the hole, ensuring the top of the root ball is level with the surrounding soil. Backfill and firm the soil gently.
Watering After Planting: Water thoroughly to help the plant settle and eliminate air pockets. Ensure the area drains well.
Watering Requirements
Growing Season: Hydrangea arborescens ‘Annabelle’ prefers consistently moist soil. Water deeply once or twice a week, depending on rainfall levels. Avoid waterlogging.
Dry Periods: Increase watering during prolonged dry spells to prevent wilting. A layer of mulch helps retain moisture.
Winter: Reduce watering but ensure the soil does not dry out completely.
Feeding
Spring: Apply a balanced slow-release fertiliser at the start of the growing season to support strong new growth and flowering.
Mid-Summer: A light feeding in mid-summer boosts flower production and overall plant health.
Pruning
Late Winter to Early Spring: Cut back stems to about 30 cm (12 inches) above ground level before new growth appears. This encourages larger blooms and a well-shaped plant.
Deadheading: Remove spent flowers to keep Hydrangea arborescens ‘Annabelle’ looking tidy and promote new blooms.
Mulching
Spring: Apply a 5-8 cm (2-3 inch) layer of mulch, such as bark chips or compost, around the base of Hydrangea arborescens ‘Annabelle’ to retain moisture, suppress weeds, and regulate soil temperature.
Winter: Mulching helps insulate the roots against cold temperatures, ensuring the plant remains healthy.
Supporting the Plant
The large blooms of Hydrangea arborescens ‘Annabelle’ can become heavy after rain, causing stems to bend. Use plant supports or stakes if needed, particularly in exposed areas.
Final Tips
Hydrangea arborescens ‘Annabelle’ is a stunning, low-maintenance shrub that provides dramatic, creamy white blooms from summer into early autumn. With proper planting, watering, and occasional pruning, this hydrangea will enhance your garden with its elegant snowball-like flowers year after year. Choose a sheltered spot with moist, well-drained soil, and enjoy a spectacular floral display throughout the growing season!
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