Hydrangea arborescens 'Grandiflora': Hills-of-Snow Hydrangea with Large Showy Blooms

Hydrangea arborescens 'Grandiflora' (Hills-of-snow hydrangea) is a southeastern U.S. native shrub with a rounded habit to 5 feet tall. It bears domes of creamy white flowers over a long period beginning in early summer. The cultivar 'Grandiflora' has larger, showier flowerheads than the species, growing 6 to 8 inches across.

Care

Prefers shade from midday sun. Blooms on current season's wood throughout summer; best pruned to 6 inches high in early spring.

Propagation

Sow seed in a cold frame in spring; take softwood cuttings in early summer, hardwood cuttings in winter.

Problems

Gray mold, slugs, powdery mildew, rust, ringspot virus, leaf spots.

Overview

• Height: 3–6 ft.
• Spread: 3–6 ft.
• Growth Habit: Spreads
• Growth Pace: Moderate Grower
• Light: Full Sun to Part Shade
• Moisture: Medium Moisture
• Maintenance: Low
• Characteristics: Native, Showy Flowers, Showy Seed Heads
• Bloom Time: Summer
• Flower Color: White
• Uses: Beds and Borders, Cut Flower, Dried Flower, Screening
• Style: Cottage Garden, Woodland Garden
• Seasonal Interest: Summer Interest
• Tolerance: Frost Tolerant
• Type: Shrubs