Hydrangea macrophylla

Hydrangea macrophylla

Hydrangea macrophylla

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Common Name: Bigleaf Hydrangea
Scientific Name: Hydrangea macrophylla

Description:

Hydrangea macrophylla, commonly known as Bigleaf Hydrangea, is a deciduous shrub famous for its large, vibrant blooms. This hydrangea species features broad, dark green leaves and produces showy flower clusters in shades of blue, pink, purple, or white, depending on soil pH. It can reach a mature height of 1-2 meters and a width of 1-1.5 meters, creating a striking presence in any garden.

Growing Requirements:

Bigleaf Hydrangea prefers partial sun, especially in warm climates, with morning sun and afternoon shade being ideal. It thrives in moist, well-draining soil and benefits from regular watering, especially during dry periods. The soil pH affects bloom color, with acidic soils producing blue flowers and alkaline soils resulting in pink blooms.

Unique Features:

One of the key features of Hydrangea macrophylla is its ability to change bloom color based on soil pH. This hydrangea’s lush, rounded flowers make it a perfect choice for ornamental displays.

Uses and Display Suggestions:

Hydrangea macrophylla is ideal for garden beds, borders, and as an accent plant. It can also be used as a striking hedge or in containers for patios and entryways. Its large blooms are beautiful in fresh-cut flower arrangements.

Light requirement: Part sun/part shade

Water requirement: Medium

Watering frequency:

Soil: Well-draining, rich soil

Skill level: Intermediate

Growth rate: Intermediate

Suitable for containers: Yes

More info: Hydrangea macrophylla requires regular watering, especially during hot or dry weather. Fertilize in early spring with a balanced fertilizer and prune only after flowering to maintain the plant’s shape. The bloom color can be altered by adjusting soil pH: add aluminum sulfate for blue flowers or lime for pink blooms.

External links to more info:

Drought tolerance: Low

Frost tolerance: Medium

Wind tolerance: Low

Disease and pest susceptibility: Susceptible to powdery mildew, leaf spot, and aphids. Good airflow and spacing help prevent disease.

Mature height: 150 cm

Mature width: 125 cm

Suitable for shaping: Yes

Colour: Dark green

Variegation: No

Size: Large

Seasonality: Deciduous

Flowering: Yes; profuse/bright display

Flower colour: Blue, pink, purple, or white (varies by soil pH)

Flower fragrant: No

Flowering season: Summer to early autumn

Fruit: No

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