Perennials


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Hydrangea macrophylla Merritt's Supreme Blue

The blue selection of Merritt Supreme Pink. Blue-colored flowers can be difficult to achieve with this variety. Results can be more purple-blue than pure blue. Average forcing period is 85 days at 65F.   To achieve intense blue color, apply Aluminum Sulfate to maintain pH at 4.5-4.8. Vigorous Habit.

 

Cultivar Hydrangea macrophylla Merritt's Supreme Blue
Common Name Hydrangea Merritt's Supreme Blue
Type Perennial
Exposure Part Sun
Irrigation Requirements Moderate
Soil Conditions Well Drained
  • Hydrangea Merritt's Supreme Blue
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Hydrangea macrophylla Merritt's Supreme Blue

CROP TIMING Average 85 days at 65F
RECOMMENDED CONTAINER SIZE 6
WHEN TO PLANT December - April
PINCHING Do NOT Pinch
PLANT GROWTH REGULATORS Vigorous, Still PGR generally not needed
VERNALIZATION Liners are vernalized
SOIL MEDIA PH 4.5-4.8
SOIL MEDIA EC 1-1.4
PESTS Spider Mights
DISEASE Botrytis
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Hydrangea macrophylla Merritt's Supreme Blue

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