Hydrangea Hydrangea macrophylla Royal Red = 'Hbarore' (PBR) (H)
ABOUT
The Hydrangea macrophylla Royal Red, commonly known as the Royal Red Hydrangea, is admired for its striking blooms. The flowers emerge on large, rounded clusters, known as mopheads, which are composed of numerous individual florets. These blossoms radiate a bold red to purplish-red color, creating a dramatic display against the backdrop of the plant's lush foliage. The leaves of the Royal Red Hydrangea are dark green, broad, and have a somewhat glossy texture, which contrasts beautifully with the vibrant color of the flowers. As the seasons change, the color of the flowers can shift, often deepening or taking on different hues. The plant's overall appearance is lush and full, with a bushy habit that showcases its abundant blooms. The Royal Red Hydrangea exudes a classic charm, making it a popular choice for ornamental gardens and landscapes, where it provides a burst of color and attracts the attention of onlookers.
About this plant
NamesFamily
Hydrangeaceae.
Synonyms
Mophead Hydrangea, Bigleaf Hydrangea, French Hydrangea, Lacecap Hydrangea, Hortensia.
Common names
Hydrangea macrophylla 'Royal Red', Hydrangea macrophylla var. normalis 'Royal Red'.
ToxicityTo humans
Hydrangea, generally including the variety Hydrangea macrophylla 'Royal Red', contains compounds that can be toxic if ingested. The plant contains cyanogenic glycosides, which can release cyanide when chewed or digested. Ingestion of plant parts, particularly the leaves and flower buds, can potentially lead to symptoms of poisoning which may include stomach upset, nausea, vomiting, and diarrhea. In severe cases, ingestion could result in dizziness, fainting, and more severe toxic effects due to cyanide release. It is advisable to keep hydrangeas out of reach and to avoid ingesting any part of the plant.
To pets
Hydrangea, including the Hydrangea macrophylla 'Royal Red,' is also toxic to pets such as cats and dogs. It contains cyanogenic glycosides that can be converted to cyanide in the body. The signs of toxicity in pets can include gastrointestinal upset, such as vomiting and diarrhea, lethargy, depression, and in some cases more severe symptoms like rapid breathing, increased heart rate, and seizures if ingested in large quantities. Pet owners should prevent their animals from consuming parts of the hydrangea plant.
CharacteristicsLife cycle
Perennials
Foliage type
Deciduous
Color of leaves
Green
Flower color
Red
Height
3-5 feet (0.9-1.5 meters)
Spread
3-5 feet (0.9-1.5 meters)
Plant type
Shrub
Hardiness zones
6
Native area
Japan
Benefits
General Benefits- Aesthetic Appeal: Hydrangea macrophylla, commonly known as Bigleaf Hydrangea, has large, vibrant red flowers that enhance visual interest in gardens and landscapes.
- Seasonal Interest: Bigleaf Hydrangeas bloom from early summer to late fall, providing a long display of color throughout the growing seasons.
- Versatile Landscaping: The shrub can be used in a variety of landscaping designs, including borders, foundation plantings, and as a focal point in floral arrangements.
- Pollinator Attraction: The flowers can attract pollinators such as bees and butterflies, which are beneficial for the garden ecosystem.
- Shade Tolerance: Unlike many flowering shrubs, Bigleaf Hydrangeas can tolerate and bloom well in partial shade.
- Soil pH Responsiveness: The flower color can change (pink to blue) depending on the soil pH, which adds an element of surprise and interest for gardeners.
Medical PropertiesThis plant is not used for medical purposes.
Air-purifying QualitiesThis plant is not specifically known for air purifying qualities.
Other Uses- Hydrangea tea can be created from the leaves and blossoms for use in spiritual rituals or as a naturally sweet tea with a floral note. However, consuming large amounts may be harmful due to the plant's natural toxicity.
- Dye can be extracted from the flowers of hydrangeas, offering a range of colors from pink to blue depending on the pH level of the soil they were grown in.
- The pigments from the flowers were traditionally used in Japan to create a sweet called "ama-cha," which translates to sweet tea, and it is used during the Buddha bathing ceremony on April 8th.
- Pressed flower crafts can be made using hydrangea blooms due to their wide, flat shape which preserves well in between the pages of a book or in a flower press.
- Hydrangea flower heads can serve as a natural pH indicator for soil or for educational science experiments by observing color changes.
- The wood of hydrangea is dense and can be carved into small tokens or beads when properly dried and treated.
- Floral arrangements and wreaths can include dried hydrangea blooms which maintain shape and color well after desiccation.
- In certain cultures, hydrangea flowers are used as a symbol of gratitude or apology in the language of flowers when given as a gift.
- Hydrangea blooms can be used in potpourri mixes to add volume and a subtle, sweet fragrance.
- The large leaves of hydrangeas can be used as a natural wrapping for small packages or as a decorative plate for presenting food, though care must be taken due to potential toxicity if ingested.
Interesting Facts
Feng ShuiThe Hydrangea is not used in Feng Shui practice.
Zodiac Sign CompitabilityThe Hydrangea is not used in astrology practice.
Plant Symbolism- Heartfelt and Sincere Emotions: The Hydrangea macrophylla, commonly known as the Bigleaf Hydrangea, often symbolizes deep, heartfelt emotions due to its lush and abundant flower heads. 'Royal Red' shares this meaning, representing the giver's genuine feelings.
- Gratitude: Bigleaf Hydrangeas are also symbols of gratitude and thankfulness, making them popular gifts to express appreciation.
- Understanding: A gift of Hydrangeas can signify the giver's understanding of the recipient's feelings or situation, conveying empathy and compassion.
- Vanity or Boastfulness: In some cultures, the Hydrangea can represent vanity or boastfulness due to the plant's showy appearance, which is a reminder of the risk of becoming too self-absorbed.
- Abundance and Prosperity: The voluminous blooms of the Hydrangea are often associated with abundance and prosperity, making them a common choice for celebrations and festive occasions.
WaterBigleaf hydrangeas, such as the Royal Red Hydrangea, prefer consistently moist soil, so regular watering is important, especially during dry spells. Water the plant deeply once a week, providing about 1 gallon of water to ensure moisture penetrates the root zone. During hotter seasons or particularly dry weather, additional watering may be necessary to keep the soil from drying out, so check the soil moisture level a couple of times a week. Reduce watering during the fall to prepare the plant for dormancy and avoid waterlogging in winter, which can lead to root rot. Always avoid overhead watering to prevent leaf diseases; instead, water directly at the base of the plant.
LightRoyal Red Hydrangea flourishes best in partial shade, although it can tolerate some morning sun with afternoon shade. An ideal spot would be one that is protected from the intense heat of the midday sun, which can cause the foliage to scorch. These hydrangeas can also grow under the dappled light of a canopy of trees, which mimics their natural habitat in woodland areas.
TemperatureRoyal Red Hydrangea thrives in a range of temperatures, but it prefers moderate to warm climates. It can withstand minimum temperatures down to about 20 degrees Fahrenheit, but frost can damage the flower buds and stems. The ideal temperature range is between 60 and 80 degrees Fahrenheit during the growing season. However, during the heat of summer, precautions must be taken to ensure the plant doesn't overheat, especially in areas where temperatures exceed 85 degrees Fahrenheit.
PruningPrune Royal Red Hydrangea to maintain its shape and encourage vigorous growth. The best time for pruning is after the plant has flowered in late summer or early fall, as it blooms on old wood. Remove dead or weak stems, and cut back about one-third of the oldest stems to ground level annually to rejuvenate the plant. Also, trim back any stems that may have been damaged by winter weather or are crossing and rubbing against each other to promote good air circulation within the plant.
CleaningAs needed
SoilThe best soil mix for Hydrangea (commonly referred to as Bigleaf Hydrangea) is rich in organic matter, well-draining, and moist. A mixture of peat, compost, and perlite can provide the necessary structure and nutrients. Keep the soil pH around 5.5 to 6.5, as this slightly acidic range is optimal for Bigleaf Hydrangeas and will enhance the red coloration of 'Royal Red' blossoms.
RepottingBigleaf Hydrangeas, like 'Royal Red', should be repotted every 2 to 3 years to ensure they have enough space to grow and to replenish nutrients in the soil. It’s best to repot in late winter or early spring before the new growth starts.
Humidity & MistingBigleaf Hydrangea thrives in a location with moderate to high humidity, ideally around 60% or higher. Avoid dry air conditions as they can lead to leaf dehydration and poor bloom development.
Suitable locationsIndoor
Place in bright, indirect light and ensure high humidity.
Outdoor
Plant in partial shade, sheltered from strong winds.
Hardiness zone
6-9 USDA
Life cycleHydrangea macrophylla Royal Red, commonly known as just Hydrangea, begins its life cycle as a seed, although commercial cultivars are often propagated via cuttings. Once germinated or rooted, it develops into a juvenile plant with a mass of roots and shoots. As it matures, it forms a woody stem and produces large, broad leaves. In late spring to early summer, it enters the flowering stage, showcasing large red to purple inflorescences, which are either mophead or lacecap depending on the variety. Post-bloom, in the fall, the flowers may fade to a beige color, and the plant enters dormancy during the colder months. In the following spring, the Hydrangea experiences regrowth, continuing its perennial cycle of flowering and dormancy.
PropogationPropogation time
Spring-Early Summer
Propogation: The most popular method of propagating Hydrangea macrophylla 'Royal Red' is through softwood cuttings. This is typically done in the late spring or early summer when the plant's new growth is still young and pliable, yet mature enough to handle being cut and re-rooted. To propagate, one would cut a 4 to 6-inch (approximately 10 to 15 centimeters) length from a healthy, non-flowering stem, removing the lower leaves and possibly dipping the cut end into a rooting hormone for better results. The cutting is then planted in a mix of peat and perlite or sand, ensuring high humidity and consistent moisture without waterlogging the soil. With proper care, the cutting should root within a few weeks, at which point it can eventually be transplanted outdoors.
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