Hydrangea arborescens 'FlowerFull®'
Overview
Uses: Borders, mixed shrub beds, foundation plantings, and naturalized landscapes.
Benefits: Extra-large flower clusters with stronger stems, extended bloom season, and excellent cold hardiness. Compact growth habit and reliable reblooming make it a strong performer in both residential and commercial landscapes.
USDA Hardiness Zones: 3 – 9
Sun: Full Sun to Partial Shade
Life Cycle: Deciduous shrub
Mature Height: ~3' – 4'
Mature Width: ~3' – 4'
Bloom Season: Early Summer through Fall
Growth Rate: Moderate
Summary
FlowerFull® Smooth Hydrangea lives up to its name with full, rounded blooms that bring long-lasting beauty to the summer garden. Each plant produces oversized white flower heads that gradually age to soft green, supported by sturdy stems that resist flopping and sagging.
This improved Hydrangea arborescens selection delivers reliable color and form even in colder climates. Its compact shape makes it ideal for low hedges or as a foundation accent, while its adaptability to sun or partial shade ensures flexibility across planting sites. Perfect for gardeners seeking a classic hydrangea look with modern performance.
Plant FlowerFull® for dependable summer show, easy care, and graceful, full-season interest that transitions beautifully from fresh white bloom to winter structure.
Care
FlowerFull® Smooth Hydrangea Care
Plant in rich, well-drained soil that retains moisture without staying soggy. Smooth hydrangeas tolerate a wide range of conditions but perform best with consistent watering during active growth and bloom.
Water deeply and regularly the first year to establish strong roots. Once established, water as needed during dry periods to maintain healthy foliage and flower production.
Feed in early spring with a balanced, slow release fertilizer to promote vigorous growth and abundant blooms.
Prune in late winter or early spring before new growth emerges. FlowerFull® blooms on new wood, so annual pruning encourages the fullest display of flowers.
For grouped plantings or borders, space approximately 3' – 4' apart on center to allow mature spread and airflow.
Size
Size of FlowerFull® for Sale Online
Our plants ship in greenhouse-grade grow pots and are appropriately sized for their containers. For current pot sizes and availability, please contact us.
Size of FlowerFull® When Mature
Expect a compact, rounded shrub approximately 3' – 4' tall and 3' – 4' wide at maturity under average garden conditions.
Additional Information
What is the botanical name of FlowerFull® Hydrangea?
The botanical name is Hydrangea arborescens 'FlowerFull®'.
When and how should I prune FlowerFull® Hydrangea?
Prune in late winter or very early spring before growth resumes. Since FlowerFull® blooms on new wood, pruning encourages stronger, fuller flowering each season.
Can FlowerFull® Hydrangea grow in full sun?
Yes, it can grow in full sun in northern climates, but partial shade is recommended in hotter regions to prevent leaf scorch and extend bloom life.
What makes FlowerFull® different from other smooth hydrangeas?
FlowerFull® offers denser flower clusters, stronger stems, and improved reblooming over older varieties like ‘Annabelle’. It holds its flowers upright and provides an extended display through the growing season.
How often should I water smooth hydrangeas?
Water deeply once or twice a week during dry weather. Hydrangeas prefer consistently moist soil but should never sit in standing water.
Does FlowerFull® attract pollinators?
Yes—its large flower clusters attract bees, butterflies, and other beneficial pollinators, making it an excellent choice for wildlife-friendly gardens.
Is FlowerFull® Hydrangea cold hardy?
Yes. Hardy to Zone 3, FlowerFull® handles cold winters easily and is well-suited for northern climates.
Is FlowerFull® Hydrangea deer resistant?
While not entirely deer-proof, smooth hydrangeas are less frequently browsed compared to many shrubs. Applying repellents during active browsing periods can help deter damage.
When is the best time to plant hydrangeas?
Spring and early fall are best for planting hydrangeas, allowing ample time for root establishment before extreme summer or winter conditions.
