
Firefly Bigleaf Hydrangea
Hydrangea macrophylla 'HORCOS'
36 reviews
Firefly Bigleaf Hydrangea
Hydrangea macrophylla 'HORCOS'
36 reviews
2.5 Gallon
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Not just beautiful - intentionally selected by ShrubHub's 3D landscape design team to fit real-world spaces and maximize yard potential.
Why Firefly Bigleaf Hydrangea?
Firefly Bigleaf Hydrangea is a gorgeous flowering shrub that produces large clusters of bright pink flowers against deep green foliage. It is a low-maintenance plant that is self-cleaning, so there is no need for deadheading. It blooms from mid to late summer, and its stunning flowers make it an ideal choice for borders, hedges, and container gardens. It is a hardy plant that can tolerate a wide range of soil types and acidity levels, but its color can vary based on soil pH.
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Sunlight
Firefly Bigleaf Hydrangea requires partial sunlight to thrive.

Watering
Firefly Bigleaf Hydrangea has moderate watering requirements, needing regular watering to keep the soil consistently moist but not waterlogged. Avoid overwatering or allowing the soil to dry out completely.

Fertilizing
Firefly Bigleaf Hydrangea benefits from regularly applying a balanced, slow-release fertilizer in early spring and again in early summer. It should have a high phosphorus content to promote flowering, alongside the appropriate amounts of nitrogen and potas
Firefly Bigleaf Hydrangea is a type of Bigleaf Hydrangea, known by its scientific name Hydrangea macrophylla or simply as French hydrangea. The flowering shrub shares the big leaves trait with the rest of the Bigleaf Hydrangea variations. It also produces large clusters of bright pink to red flowers. The stunning color of the flowers is set against deep green foliage.
It's also a low-maintenance plant that needs no deadheading. Firefly Bigleaf Hydrangea is a hardy plant that can tolerate a wide range of soil types and acidity levels. It's one of the acid-loving plants if anything, but it has a bi-color effect, meaning the stunning color can vary based on soil pH. Acid-to-neutral soils produce more purple-blue flowers while alkaline soils lead to red flowers, both with the same contrasting eye. The distinct cream-colored eye makes both colors more striking.
Firefly Bigleaf Hydrangea prefers moist, well-drained soil otherwise. It should be planted in full sun to partial sun. In areas with very hot summers (USDA zones 7 and warmer), a little afternoon shade will keep the foliage from scorching. Organic matter will keep the plants healthy.
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Plant Information:
Botanical Name: | Hydrangea macrophylla 'HORCOS' |
USDA Zones: | 6 - 9 |
Water: | Moderate |
Exposure: | Full Sun |
Soil Needs: | Well Drained |
Mature Height: | 4 - 5 feet |
Mature Spread: | 4 - 5 feet |





Pollination Info
Pollination Info for Firefly Bigleaf Hydrangea
The Firefly Bigleaf Hydrangea (Hydrangea macrophylla 'HORCOS') is a deciduous shrub that produces large, showy flower heads composed of smaller flowers. The flowers of the Firefly Bigleaf Hydrangea are primarily insect-pollinated, with bees being the most important pollinators. Butterflies and moths may also visit the flowers and assist in pollination.
The flowers of the Firefly Bigleaf Hydrangea contain both male and female reproductive parts. The male parts, or stamens, produce pollen, while the female part, or pistil, contains the ovules that will eventually develop into seeds. When a bee visits a flower to collect nectar, it also picks up pollen from the stamens. As the bee moves on to another flower, some of the pollen may rub off onto the pistil, fertilizing the ovules and enabling seed production.
It's important to note that the Firefly Bigleaf Hydrangea is not self-fertile and requires cross-pollination from other plants in order to produce viable seeds. This means that having multiple plants of the same or different varieties in close proximity can help ensure successful pollination and seed production.
Overall, the Firefly Bigleaf Hydrangea relies on the activity of bees and other insects to ensure successful pollination and reproduction.
FAQ
Firefly Bigleaf Hydrangea (Hydrangea macrophylla 'HORCOS') FAQ
What is the Hardy Zone for Firefly Bigleaf Hydrangea?
Firefly Bigleaf Hydrangea is hardy in zones 5-9.
How tall does Firefly Bigleaf Hydrangea grow?
Firefly Bigleaf Hydrangea can grow up to 4-6 feet tall and wide.
What kind of soil does Firefly Bigleaf Hydrangea prefer?
Firefly Bigleaf Hydrangea prefers moist, well-draining soil that is rich in organic matter.
How much sunlight does Firefly Bigleaf Hydrangea need?
Firefly Bigleaf Hydrangea prefers partial shade, with morning sun and afternoon shade being ideal.
When does Firefly Bigleaf Hydrangea bloom?
Firefly Bigleaf Hydrangea blooms in mid to late summer.
What color are the blooms on Firefly Bigleaf Hydrangea?
The blooms on Firefly Bigleaf Hydrangea are a vivid pink color.
How do I care for Firefly Bigleaf Hydrangea?
Firefly Bigleaf Hydrangea requires regular watering, especially during dry spells. It also benefits from a layer of mulch around the base of the plant to help retain moisture. Prune the plant in late winter or early spring, before new growth appears, removing any dead, damaged, or crossing branches. Fertilize once a year in early spring with a balanced, slow-release fertilizer formulated for acid-loving plants.
Can I grow Firefly Bigleaf Hydrangea in a container?
Yes, Firefly Bigleaf Hydrangea can be grown in a container with a good quality, well-draining potting mix. Be sure to water regularly, as container-grown plants can dry out more quickly than those in the ground.
Does Firefly Bigleaf Hydrangea attract wildlife?
Firefly Bigleaf Hydrangea is unappealing to deer and rabbits, making it a good choice for gardens where these animals are a problem. The plant's flowers also attract butterflies and other pollinators.
Planting & Care
Planting and Care for Firefly Bigleaf Hydrangea (Hydrangea macrophylla 'HORCOS')
Planting
- Choose a planting location that receives morning sun and afternoon shade.
- Ensure the soil is well-draining and rich in organic matter.
- Dig a hole that is twice the width and depth of the root ball.
- Remove the plant from its container and gently loosen the roots.
- Place the plant in the hole and backfill with soil, ensuring it is planted at the same depth it was in the container.
- Water thoroughly.
Care
- Water regularly, allowing the soil to dry out slightly between waterings.
- Mulch around the plant to retain soil moisture and suppress weeds.
- Fertilize in spring with a balanced slow-release fertilizer.
- Prune in late winter or early spring before new growth begins, removing dead, damaged, or crossing branches.
- To promote blue flower color, apply aluminum sulfate to the soil in late winter or early spring.
- To promote pink flower color, apply lime to the soil in late winter or early spring.
- Protect from harsh winter winds and freeze-thaw cycles by wrapping the plant in burlap or applying a layer of mulch.
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Customer Reviews
4.6 out of 5 based on 36 reviews
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Customer service was helpful and responsive to my questions. Very satisfied.
Beautiful hydrangea plant!
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