Diamond Rouge Hydrangea
Hydrangea paniculata ‘RENDIA’ PP24,667
Plant Details
USDA Cold Hardiness Zones: 3a-8b Find Your Zone
Plant Type: Deciduous Flowering Shrub
Height at Maturity: 4-5′
Width at Maturity: 3-4′
Spacing: 3-3.5′ for solid hedges; 8’+ for space between plants
Growth Habit / Form: Upright, Bushy, Rounded
Flower Color: White, fades to Pink and then Deep Red
Flower Size: Large – up to 8 inches long
Flowering Period: Summer thru Fall
Flower Type: Single in large clusters
Fragrant Flowers: No
Foliage Color: Green
Fragrant Foliage: No
Berries: NA
Berry Color: NA
Sun Needs: Sun or Part Shade
Water Needs: Average, low when established
Soil Type: Clay (amended), Loam, Sand (amended), Silt
Soil Moisture / Drainage: Well Drained Moist
Soil pH: 5.5 – 7.5 (Moderately Acid to Slightly Alkaline)
Maintenance / Care: Low
Attracts: Visual Attention
Resistances: Disease, Heat, Humidity, Insect, Sun
Description
With a long blooming period and large snow cone shaped flowers that change spectacular shades of color throughout the season, the ‘Diamond Rouge’ Hydrangea is sure to keep things interesting in the garden. Abundant large flower clusters on strong stems begin to emerge white in early to mid-summer and quickly begin to turn to pink, then a raspberry red, and finally to a deep wine-red not seen on other Hydrangea paniculata varieties. Soil pH does not change the flower color. The flower clusters nearly cover 4 to 5 foot high mounds of deep green foliage that turns to orange in fall. A show stopper in the garden and fhe flowers are excellent for cutting and use in dried flower arrangements.
Landscape & Garden Uses
Growing in an upright rounded form 4 to 5 feet tall and 3 to 4 feet wide, the Diamond Rouge Hydrangea is ideal for use as a specimen in smaller garden spaces and large pots, planters and other containers. Truly spectacular in groupings or as a hedge in larger spaces. A fine addition to mixed flowering shrub borders, as an accent in home foundation plantings, as a background in perennial gardens, pink theme gardens, cut flower gardens and cottage gardens.
Suggested Spacing: 3 to 3.5 feet apart for solid hedges; 8 feet or more apart for space between plants
Growing Preferences
The Diamond Rouge Hydrangea is exceptionally easy to grow when planted right and in the right spot. Almost any moist but well-drained soil of average fertility will do. It can take the heat at our location here in north-central Georgia, but is also exceptionally cold hardy, withstanding even the coldest winter temperatures as far north as USDA Zone 3a, where it will also tolerate full, all day sun. In zones 7 and 8 it will tolerate full sun however we’ve seen it perform and look its best with a little filtered sun or dappled shade during the hottest hours of summer afternoons. Too much shade and plants become floppy with diminished flowering. For best flowering, 5 hours of direct sunlight per day or all day lightly filtered sun is suggested.
Note: Diamond Rouge is a Hydrangea paniculata species that produces its flowers from buds that are formed on “new wood” (the current season’s growth). This means you don’t want to prune them in late spring or summer when they’re preparing to bloom.
For proper pruning time and techniques on various types of Hydrangea see: How To Prune Various Types Of Hydrangea
Helpful Articles
Click on a link below to find helpful advice from our experts on how to plant and care for Hydrangeas.
How To Plant Hydrangeas In The Ground & Pots
How To Prune Various Types Of Hydrangea
How To Fertilize And Water Hydrangeas
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