Choose Forever Blue Hydrangea for dependable blue mophead flowers on a compact, reblooming bigleaf that blooms on both old and new wood. The tradeoff: like all bigleaf hydrangeas it wants steady moisture, a protected spot, and a light touch with the pruners.
Buy This If
You want reliable blue mophead flowers.
You can keep the soil evenly moist.
You like bloom color that shifts with soil pH.
Skip This If
You need a drought-tough shrub.
You cut your shrubs back hard each spring.
You want guaranteed white blooms.
PGNE Report Card
Category
Grade
Why
Landscape Impact
A-
Rounded blue mopheads give strong front-of-house impact when the plant is sited well.
Growth Rate
B+
Fills in at a useful pace; bloom performance matters more than raw speed.
Maintenance
B-
Watering, mulch, and careful pruning make a real difference.
Deer Resistance
C
Hydrangeas aren't deer-resistant, but they aren't a deer favorite either. Deer may nibble tender new growth and buds where pressure is heavy.
Small Space Fit
B+
Compact, bushy habit works well in smaller beds with room for airflow.
Screening Value
C
It can soften a view, but it's grown for flowers, not privacy.
Our Experience
At PGNE, we recommend this for protected beds where the homeowner will water during dry stretches and skip hard spring pruning. Kept in acidic soil, it holds that true-blue color that sells itself.
Plant Facts
Mature Height
3-4 ft
Mature Width
3-4 ft
Hardiness Zones
4b-9a
Spacing
3.5 ft
Sun
Full Sun to Part Shade
Moisture
Average to moist
Growth Habit
Rounded, mounding
Customers Usually Ask
Will the flowers stay blue?
Soil pH drives the color: acidic soil trends blue, less acidic trends pink. Aluminum sulfate helps hold blue.
When should I prune it?
Remove dead wood after leaf-out and avoid cutting the whole plant back in spring, since it flowers on old wood too.
Will it rebloom every year?
It can rebloom on new wood, but weather, moisture, pruning, and winter protection all affect the show.
Why buy for fall color
See the actual color before you buy it
Foliage, berries and late bloom — all three seasons of interest
Fall planting means roots established before winter
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.
We use your zone to recommend plants that survive your winters, and to estimate when your
order ships — we ship each plant when the weather where you live is right for it.
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