We're offering you a Hydrangea 'Annabelle' Potted Plants for £7.99, saving you up to 38% off Thompson and Morgan's's price of £12.99 (correct as of 22.05.2026).

Hydrangea 'Annabelle' – Dramatic White Blooms All Summer

Hydrangea arborescens 'Annabelle' is a standout deciduous shrub, celebrated for its massive, snowball-like white flower heads and reliable garden performance. Holder of the RHS Award of Garden Merit, this variety guarantees spectacular blooms from June to September, brightening borders and shaded corners alike.

• Spectacular Blooms: Each sturdy stem supports a globe of pure white flowers—often reaching 25cm wide—contrasting beautifully against deep green foliage.
• Mature Size: Forms a substantial mound up to 250cm (98") tall and wide, ideal as a specimen plant or dramatic backdrop in mixed borders.
• Seasonal Interest: Flowers from early summer into autumn. Leave dried heads on through winter for added structure and interest.

Growing Guide & Care Tips

• Planting Location: Prefers partial shade but will tolerate full sun if soil stays moist. Suits woodland gardens, shady borders, or as an informal hedge.
• Soil Requirements: Thrives in moist, well-drained soils with neutral to slightly acidic pH (5.5–7). Mulch annually to lock in moisture and feed the roots.
• Watering: Keep soil consistently moist during hot weather and while establishing. Avoid waterlogged conditions.
• Pruning: Cut back hard in late winter or early spring—trim stems to strong buds about 15–20cm above ground—to encourage vigorous new growth and larger blooms.
• Hardiness: Fully hardy throughout the UK (USDA zones 3–9), tolerating cold winters with ease.
• Feeding: Apply a balanced slow-release fertiliser in early spring for best results.

Design & Companion Planting Ideas

• 'Annabelle's' bold white flowers pair beautifully with hostas, ferns, astilbes, and shade-loving ornamental grasses.
• Create layered woodland borders or use as an informal hedge along paths and patios for maximum impact.
• The strong stems make it perfect for cut flower arrangements—both fresh and dried displays last well indoors.

FAQs

• When is the best time to plant Hydrangea 'Annabelle'?
  The best time is autumn or early spring when the soil is moist and temperatures are mild.
• How fast does it grow?
  'Annabelle' establishes quickly and can reach mature size within 2–4 years under ideal conditions.
• Does it need much pruning?
  This hydrangea benefits from annual hard pruning in late winter or early spring to promote vigorous growth and abundant blooms.