Hydrangea paniculata 'Moonrock®' – Moonrock Panicle Hydrangea

This avant-garde selection breathes fresh, contemporary energy into any landscape design with its unique and cooling color palette. The 'Moonrock' panicle hydrangea deploys dense, conical flower panicles in an elegant creamy lime green, topped at the very tip with an immaculate pure white pinnacle that shines like a beacon. Its robust, upright stems beautifully hold these luminous blooms high above healthy, dark green foliage. Ideal for illuminating partly shaded spots or taking center stage in full sun, it maintains its refreshing, clean hues for long weeks before gently tinting with pink in autumn.

Characteristics

• Foliage : Deciduous. The oval, rich deep green, and slightly textured leaves create a perfect canvas that makes the unique clarity of the inflorescences pop.
• Flowering / Fruiting / Stems : Large, dense, and compact conical inflorescences bloom from July to October. The vigorous, robust stems display excellent rigidity, preventing the heavy panicles from bending under their own weight or after rainfall.
• Light Requirements : Full sun to part shade. A sunny exposure promotes a dense structure and abundant flowering.
• Habit : Upright, compact, and bushy, offering a proud, regular, and well-balanced silhouette.
• Growth : Fast. Promptly reaches its academic dimensions to quickly structure the garden space.
• Soil : Thrives in rich, fresh, loose, and adequately drained soil. Adapts well if moisture remains consistent.
• Temperature : Perfectly hardy, effortlessly withstanding harsh winters down to Zone 3.
• Resistance : Demonstrates excellent resistance to fungal foliar diseases, intense cold, and urban pollution. Because it blooms on new wood, its flower buds remain safe from late spring frosts.

Use

• Types of use : Ideal for shrub borders, uniform flowering hedges, back-of-the-border structures, or as an isolated specimen plant. Integrates beautifully into large containers to green up and structure patios and decks. The flowers lend themselves wonderfully to creating exceptional fresh or dried bouquets.
• Decorative advantages : Brings a refreshing luminosity and high-end texture to the landscape. The striking contrast between the lime-green base and the pure white top of the inflorescence creates a unique three-dimensional effect.

Maintenance

• Watering : Water regularly and generously during the first two growing seasons to promote deep root establishment. Maintain cool soil with mulch during peak summer heat waves, as this variety appreciates consistent moisture.
• Fertilization : Apply a flowering shrub fertilizer or spread a rich compost at the base of the shrub in early spring to support its generous bloom.
• Pruning : Cut the plant back by one-third to one-half in early spring, before leaves emerge. This intervention stimulates the emergence of very strong stems and even denser flower panicles.
• Planting : Install in a hole twice as wide as the root ball, amending the soil with organic matter. Space plants 120 to 150 cm apart to allow for optimal deployment.