Hydrangea serrata: Mountain Hydrangea with Lacecap Flowers

Hydrangea serrata (mountain hydrangea) was formerly grouped with lacecap hydrangeas due to its flattened flower heads consisting of central small florets surrounded by showy larger florets. It is similar to H. macrophylla but more compact with smaller flowers and leaves.

Noteworthy Characteristics

Blue or pink lacy flowerheads.

Care

Grow in moist, well-drained soil in sun to partial shade. Provide shelter from drying winds.

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: Clumps
• Growth Pace: Moderate Grower
• Light: Full Sun to Part Shade
• Moisture: Medium to Wet
• Maintenance: Low
• Characteristics: Showy Flowers, Showy Seed Heads
• Bloom Time: Fall, Summer
• Flower Color: Blue, Pink
• Uses: Beds and Borders, Container, Cut Flower, Dried Flower
• Style: Cottage Garden, Woodland Garden
• Seasonal Interest: Summer Interest
• Tolerance: Frost Tolerant
• Type: Shrubs