Smooth Hydrangea

About this plant

Hydrangea arborescens 'Haas' Halo is a magnificent, improved selection of our native Smooth Hydrangea, celebrated for its exceptionally large, luminous white lacecap flowerheads. These impressive blooms, often reaching 10-12 inches across, are composed of a central cluster of fertile florets surrounded by a ring of prominent, sterile florets, creating a captivating halo effect. Blooming profusely from early summer well into autumn, 'Haas' Halo provides a continuous display of pristine white, bringing a bright, refreshing presence to any landscape. Its sturdy stems hold the massive flowers upright, even after heavy rains, ensuring a consistently elegant appearance. Beyond its stunning aesthetic, this cultivar is remarkably adaptable and robust. It's an excellent choice for borders, mass plantings, or as a striking specimen, offering beauty and resilience throughout the growing season.

Care & maintenance

Easily grown in average, medium moisture, well-drained soils. Prefers rich, moist soils in part sun. Tolerates full sun if soil moisture is consistent. Benefits from a good layer of mulch to maintain soil moisture and cool roots. Prune in late winter or early spring to 1-2 feet from the ground; flowers bloom on new wood. Fertilize in spring with a balanced slow-release fertilizer.