Bigleaf hydrangea (Hydrangea sargentiana)

Bigleaf hydrangea

Bigleaf hydrangea is a deciduous shrub and is considered an extremely rare hydrangea variety that enthusiasts must have. It is composed of dark green leaves with small blue to plum dome-shaped flowers. Growing this plant in well-drained soil under full sun to moderate shade will achieve great results.

Scientific classification

Species

Bigleaf hydrangea (Hydrangea sargentiana)

Dogwoods, hydrangeas, and allies

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Perennial

Lifespan

Shrub

Plant Type

3 m

Plant Height

3 m

Spread

Green

Leaf Color

White, Purple, Blue

Flower Color

Deciduous

Leaf type

Images of Bigleaf hydrangea

Care Guide for Bigleaf hydrangea

Every 1-2 weeks

Water

Partial sun

Sunlight

0 - 35 ℃

Ideal Temperature

Garden Soil

Soil Type

Water: Bigleaf hydrangea thrives in moist, humid woodland environments requiring consistent moisture. Ideally watered every 1-2 weeks, it prefers evenly moist soil. While moderately drought-tolerant, it flourishes with ample hydration, supporting its lush foliage and vibrant blooms during the growing season.

Fertilize: Different bigleaf hydrangea varieties require specific fertilization: Bigleaf and Oakleaf need bi-monthly applications in spring to early summer, while Panicle requires annual spring feeding and Smooth just one before winter. Iron deficiency hampers growth, causing leaf yellowing; use acidic fertilizers or iron supplements to enhance absorption.

Pruning: Pruning methods for bigleaf hydrangea vary by blooming type. Bigleaf and oakleaf hydrangeas require early summer pruning, focusing on old branches. 'Endless Summer' can be pruned year-round, avoiding spring. Smooth and panicle hydrangeas bloom on new branches, allowing flexible pruning, except in spring during bud formation.

Propagation: To successfully propagate bigleaf hydrangea, use semi-hardwood cuttings from healthy, non-flowering shoots in late summer. A rooting hormone, well-draining medium, and high humidity support growth. Protect cuttings from extreme conditions to ensure warmth and moisture, fostering strong establishment for vigorous development.

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Learn More About Bigleaf hydrangea

How to Transplant

How to Propagate

How to Grow and Care

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Images of Bigleaf hydrangea

Care Guide for Bigleaf hydrangea

Common Pests & Diseases