Diamond Rouge Hydrangea

White To Red Blooms
Compact Panicle Form
Summer Fall Color

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#3 Container

$48.00

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Our local delivery area reaches as far north as Schroon Lake, south to Voorheesville, Glenmont, and East Greenbush areas, parts of Fulton and Montgomery counties, much of Washington County, and all areas in between. If you have questions on local delivery, give us a call at

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Diamond Rouge Hydrangea

Sunlight
Can grow in a range from full sun to partial shade. They need at least six hours of direct, unfiltered sunlight per day.
Watering
Regular watering schedule for the first six months. Once established, rainwater should be sufficient.
Fertilizing
Should not need any extra fertilizer unless your entire lawn and garden have problems and needs regular fertilizing.

Diamond Rouge Hydrangea

Diamond Rouge Hydrangea is a compact panicle hydrangea known for large cone-shaped blooms that shift from white to vivid pink, red, and wine tones. Its strong seasonal color, manageable size, and upright rounded habit make it a standout for borders, foundations, mass plantings, and sunny focal points.

Why choose Diamond Rouge Hydrangea?

Choose Diamond Rouge Hydrangea for a bold color-changing shrub that delivers a long summer-to-fall display with less space than many larger panicle hydrangeas. The blooms open pale, then develop increasingly rich red tones as they mature, creating a layered look on the same plant. Its compact habit, reliable new-wood flowering, and strong landscape presence make it useful in mixed borders, low hedges, cottage gardens, and foundation beds where dependable seasonal color is the goal.

Key Characteristics

Botanical Name: Hydrangea paniculata ‘Rendia’
Common Name: Diamond Rouge Hydrangea
Plant Type: Deciduous flowering shrub
Growth Habit: Compact, upright, rounded panicle hydrangea

Diamond Rouge Hydrangea Additional Information

Diamond Rouge Hydrangea produces large cone-shaped flower panicles on new growth, usually beginning in summer and continuing into fall. The flowers open creamy white, transition to pink, and mature into deeper red to wine-red shades as the season progresses. Because color develops as blooms age, the shrub often shows multiple tones at once. Unlike bigleaf hydrangeas, its flower color is not meaningfully changed by soil pH.

The foliage is medium green through the growing season and the plant is deciduous, dropping its leaves in fall. Spent flower heads may be left standing for winter texture or removed during pruning. Diamond Rouge Hydrangea works well as a specimen, foundation shrub, colorful hedge, mass planting, or cut-flower source. Since it blooms on new wood, pruning is best done in late winter or early spring before new growth begins.

Planting & Care

1. Planting: Plant Diamond Rouge Hydrangea in full sun to partial shade with fertile, well-drained soil. In hot or exposed sites, a location with morning sun and light afternoon shade can help flowers and foliage stay fresh.

2. Watering: Keep soil evenly moist during the first growing season while roots establish. Once established, water during extended dry periods, especially in full sun, sandy soil, or reflected heat near patios and foundations.

3. Mulching: Apply a 2 to 3 inch layer of mulch around the root zone to conserve moisture, moderate soil temperature, and protect shallow roots. Keep mulch pulled back from the base of the stems.

4. Pruning: Prune in late winter or early spring before new growth appears. Remove weak, damaged, or crossing stems and lightly shape the plant to encourage sturdy new flowering growth.

Related Resources

FAQs

How large does Diamond Rouge Hydrangea get?
Diamond Rouge Hydrangea is typically a compact panicle hydrangea, often reaching about 4 to 5 feet tall and wide in the landscape, depending on growing conditions and pruning.
When does Diamond Rouge Hydrangea bloom?
It usually blooms from summer into fall. The flowers start creamy white, then shift through pink and red shades as they mature, creating a long-lasting seasonal display.
Does soil pH change the flower color of Diamond Rouge Hydrangea?
No. Diamond Rouge Hydrangea is a panicle hydrangea, so its white-to-red color progression is part of the variety’s natural bloom cycle rather than a soil pH reaction.

Shipping Details

Estimated Shipping Time: Most orders ship immediately. As noted on the website, some items are seasonal, and may only ship in spring or fall. Once your order is shipped, you’ll receive an email with a tracking number.

Amount of Order	Shipping Charge
Local Delivery	FREE SHIPPING
Non-Local Delivery	Varies based on UPS shipping

Thrives
Full Sun
Flowering

Mature Height	Small: Up to 15 ft
Mature Spread	5-10 ft
Growth Rate	Fast, Moderate
Botanical Name	Hydrangea paniculata 'Rendia'
Bloom Time	Mid Summer
Deer Resistant	No
Family	Hydrangeaceae
Flower Color	Pink, White
Hardiness Zones	3, 4, 5, 6, 7, 8
Light Needs	Full Sun, Partial Sun
Maintenance	Medium
Size	#3 Container

Map of the United States with all states filled in green, showing a uniform green fill across the country.

Growing Zones 3-8 Outdoors

(Hardy down to -40)

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Maintenance	Low	Low	Low	Low	Low	Low