Smooth Hydrangea - Hydrangea arborescens

Phonetic: hy-DRAN-jee-ah ar-bor-ESS-sens

Shrubs larger than 1 gallon can not be shipped.

Smooth Hydrangea is a cold hardy shrub that thrives in neutral to acidic, well drained soils in partial shade. It will tolerate full sun if planted in soil with constant moisture. It blooms on new wood from June through September with predominantly lacecap inflorescences that contain fertile flowers and are surrounded by showy sterile flowers. The nectar-rich flowers attract a flurry of bees and butterflies. The flower color does not change dependent on soil Ph and will turn to seed capsules that ripen in October through November. The shrub can be pruned back heavily in late winter, at the very least the damaged or weak stems should be removed. 

• Hardiness Zone:  3-9
• Native Northeast Region: BONAP Map
• BONAP Map Key Color Guide: Map Color Key
• Sun Exposure:  Partial to Full Shade
• Flower Color: White
• Bloom Time: June - September
• Soil Type: Medium - Moist
• Mature Plant Size: 3-5' Height, 3-5' Width
• Plant Spacing: 3'
• Host Plant:  Hydrangea Sphinx Moth , 
• Attracts:  Bees, butterflies, birds
• Advantages: Deer and rabbit resistant, clay soils and salt tolerant
• Landscape Uses:  Shrub borders, Woodland margins, Perennial garden
• Companion Plants:  Woodland Phlox, Jacob's Ladder, Canadian Anemone

Grow Smooth Hydrangea Organically

A smooth hydrangea is an excellent choice for native landscapes that combine beauty with ecological benefits. This North American native produces large blooms that brighten woodland gardens and rain gardens while adding lasting seasonal interest. It pairs well with other native plants to create layered landscapes that support beneficial insects and local wildlife. Planting it alongside native perennials creates a diverse, resilient garden that offers lasting color, texture, valuable habitat, and seasonal interest throughout the growing season.

At Bagley Pond Perennials, our organically grown native plants reflect a commitment to healthier ecosystems and sustainable gardening. Each plant is carefully selected to help support regional wildlife while thriving in suitable growing conditions.

Are you creating a new pollinator garden or enhancing an existing landscape? This dependable shrub offers natural beauty and reliable performance. Contact us to find the right native plants for your garden.

Frequently Asked Questions

How does a smooth hydrangea fit into a native landscape?

Smooth hydrangeas blend naturally with woodland perennials and flowering shrubs. Their rounded form helps soften planting beds while creating habitat that supports a more balanced ecosystem for birds and other beneficial wildlife.

Can smooth hydrangeas be used in restoration projects?

Yes. Because they are native to parts of eastern North America, smooth hydrangeas can contribute to restoration and conservation plantings when paired with other regionally appropriate native species, strengthening biodiversity in naturalized planting areas over time.

What makes organically grown native shrubs beneficial?

Organically grown plants are produced without practices that could harm beneficial insects. Choosing native shrubs also supports healthier food sources and shelter for local wildlife while promoting more resilient and sustainable garden ecosystems.

What plants pair well with smooth hydrangeas?

They combine beautifully with ferns, woodland wildflowers, native sedges, and other shade-tolerant perennials. Mixing plants with different bloom times also creates continuous seasonal interest while providing habitat across multiple growing seasons naturally.

Where can Bagley Pond Perennials ship plants?

Bagley Pond Perennials ships plants to locations east of the Mississippi, helping gardeners establish native landscapes with organically grown species suited to regional growing conditions for successful planting and long-term landscape health.