Blue Diamond® Hydrangea

$59.00

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Hydrangea macrophylla 'Blue Diamond'

Blue Diamond® Hydrangea is a bigleaf hydrangea known for its rich blue blooms and improved cold hardiness compared to older macrophylla varieties. It flowers on both old and new wood, increasing bloom reliability in colder climates. Ideal for foundation plantings and high-impact summer color.

Key Features

Rich blue blooms (soil pH dependent)
Blooms on old + new wood (more reliable)
Large, showy flower heads
Strong summer color
Improved cold tolerance vs traditional macrophylla

Specs

Mature Height: 3–5 ft
Mature Width: 3–5 ft
Sun: Morning sun, afternoon shade (best performance)
Growth Rate: Moderate
Zone: 5–9 (protected sites in colder zones)
Form: Rounded / mounded

Spacing Guidance

3–4 ft spacing
3–4 ft off structures

Tags

Why Hydrangeas Steal the Show?

Hydrangeas deliver oversized blooms, rich seasonal color, and reliable performance in New England landscapes. Whether you prefer classic blue mopheads, bright white panicles, or soft pink rebloomers, hydrangeas create dramatic focal points with surprisingly low maintenance. Perfect for foundation plantings, borders, and statement garden beds.

Massive, Show-Stopping Blooms - Oversized flower heads create instant visual impact and elevate any garden space.
Reliable & Cold Hardy - Many varieties perform well in Zones 4–8, making them ideal for northern landscapes.
Long Seasonal Color - Extended bloom time keeps your yard vibrant from mid-summer through early fall.

Size #3 12-18"

25 in stock

Shrubs Grown to Perform in New England

At Pro Growers of New England, our shrubs are grown and maintained locally to perform in true New England conditions. From flowering varieties to evergreen foundation plants, each shrub is properly spaced, pruned, and cared for to develop strong root systems and balanced structure before it ever reaches your landscape.

Unlike large online sellers that ship plants long distances, we invite you to visit our nursery, walk the rows, and inspect the exact shrubs available. You can see the size, health, and fullness in person — ensuring there are no surprises upon delivery.

Pro Growers of New England, Inc

Future availability: 50