Hydrangea macrophylla Blue Lace Cap

Common Name: Blue Lacecap Hydrangea

Description:
Hydrangea macrophylla ‘Blue Lace Cap’ is a stunning deciduous shrub known for its elegant, flat-topped flower heads, featuring a delicate ring of large, soft blue petals surrounding a cluster of tiny, fertile florets. Blooming from late spring to autumn, this hydrangea adds a charming, old-world elegance to shaded garden beds, borders, and containers. Its lush, deep green foliage turns golden in autumn, adding seasonal interest. The flower colour is influenced by soil pH, with acidic soils producing blue blooms and alkaline soils creating pink to mauve tones. Thriving in Melbourne’s climate, ‘Blue Lace Cap’ prefers part shade, rich, well-drained soil, and regular watering, particularly in dry periods. Light pruning after flowering encourages a compact, healthy shape.

Form:

• Shrub - Medium

Mature Size:

• Height: 1.5m
• Width: 1.5m

Aspect:

• Part Shade
• Full Shade

Flowering:

• Flowers in Spring
• Flowers in Summer
• Flowers in Autumn

Flower Colour:

• Blue (in acidic soil)
• Mauve to Pink (in alkaline soil)

Key Attributes:

• Suitable for Pots
• Bee Attracting
• Perennial
• Acidic Soil Lover (for blue flowers)
• Shade Tolerant

Toxicity:

• Toxic to humans and pets if ingested

Companion Plants:

• Ferns (various species)
• Hosta (Hosta spp.)
• Azaleas (Azalea spp.)
• Camellias (Camellia spp.)
• Heuchera (Heuchera spp.)

For more information and photos of this species, Warners Nursery has detailed information available to the public via the following link. 

Hydrangea macrophylla Blue Lace Cap