Choose Blue Diamond Hydrangea if you want a traditional blue mophead hydrangea for a sheltered foundation or garden bed. The main payoff is summer flower color; the tradeoff is that bloom color and bud survival can vary by soil and winter exposure.
Buy This If
You want classic blue mopheads.
You can water during dry spells.
You have a protected planting spot.
Skip This If
You need reliable white flowers.
Deer regularly browse your shrubs.
The site dries out fast.
PGNE Report Card
Category
Grade
Why
Landscape Impact
A-
Large mophead blooms give strong summer color when the plant is sited well and kept evenly watered.
Growth Rate
B+
It fills in at a useful pace without becoming an aggressive shrub.
Maintenance
B-
It is not hard to grow, but watering, winter exposure, and soil pH matter more than with panicle hydrangeas.
Deer Resistance
C
Hydrangeas aren't deer-resistant, but they aren't a deer favorite either. Deer may nibble tender new growth and flower buds, so protect plants where deer pressure is heavy.
Small Space Fit
B
It works in many home beds, but the rounded habit still needs real room to look right.
Screening Value
D
It is grown for flowers, not for privacy or year-round coverage.
Our Experience
At PGNE, we’d typically recommend Blue Diamond for customers who can give it protection, steady moisture, and a little patience with bloom color. For harsher sites, we’d steer you toward a panicle hydrangea instead.
Plant Facts
Mature Height
5 ft
Mature Width
5 ft
Hardiness Zones
5a-9b
Spacing
4.5 ft
Sun
Full Sun to Part Shade
Moisture
Average to moist
Growth Habit
Rounded, mounding
Customers Usually Ask
Will the flowers stay blue?
Only if the soil stays acidic enough; otherwise they may shift toward lavender or pink.
Can I plant it by the house?
Yes, if the bed has enough depth, steady moisture, and protection from harsh exposure.
Is it easier than Limelight?
No; Limelight is the easier, more forgiving pick for most sunny, exposed sites.
Why buy hydrangeas and shrubs in the fall
Roots grow into November in warm soil
Far less watering than a summer planting
Fuller growth and stronger bloom next summer
Locally grown for New England conditions
Every plant in our Fall Sale is grown or hardened off right here in New Hampshire, so it's already acclimated to New England winters before it ever leaves our nursery.
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Amy Martin
Progrowers was a great company to purchase from. Very fast delivery to my house. The tree seems to be in great condition and is so far doing really well!
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Installation Service ($30)
Josh Wagner
The guys showed up on time, did a nice install and cleaned up after themselves.
Found this company on GOOGLE, and so glad I did!
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WHY go anywhere else!
Progrowers was a great company to purchase from. Very fast delivery to my house. The tree seems to be in great condition and is so far doing really well!
It helps us recommend plants that are best for your local climate, based on your growing zone. Also, because we ship plants based on when they are best for your local climate, it allows us to give you a more accurate estimate of when your order will ship.
