Top Six Most Frequently Selected Hydrangea Varieties for Your Outdoor Space
**Planting Cold-Hardy Hydrangeas in North America**
For garden enthusiasts seeking to add a touch of beauty and charm to their gardens, while ensuring their plants can withstand the varying climates of North America, there are several hardy hydrangea varieties to consider. Here are two popular choices native to the continent that thrive in zones 3-9.
**1. Hydrangea arborescens (Smooth-leaf Hydrangea or Mountain Hydrangea)**
Originating from Eastern North America, this hydrangea is a common sight in the southeast and mid-Atlantic regions. Known for its refined habit, smaller leaves, and blossoms compared to the lacecap hydrangea, the straight species form of the smooth-leaf hydrangea may appear unassuming, but popular varieties like 'Annabelle' and 'Incrediball' boast more robust blooms. This species is less susceptible to spring frosts than the more tender mopheads and can tolerate full sun with sufficient moisture, although it prefers partial shade for optimal growth[1][3].
**2. Hydrangea quercifolia (Oakleaf Hydrangea)**
Native to the southeastern U.S., the oakleaf hydrangea is another stunning addition to any garden. Its foliage resembles oak leaves and can grow up to eight feet tall. One of its most striking features is the transformation of its leaves in the fall, turning brilliant golden orange, crimson, or burgundy. In late spring or early summer, this hydrangea blooms with abundant creamy-white flowers in conical clusters that turn pink as the season progresses. It thrives in consistently damp but not waterlogged soil[3].
While the smooth-leaf hydrangea is more broadly suitable for zones 3-9, the oakleaf hydrangea is best in zones 5-9. Both species are well-adapted to North American climates and offer beautiful flowering and foliage characteristics. For extended cold hardiness, the smooth-leaf hydrangea is a better choice.
It's essential to familiarize yourself with the various hydrangea varieties available, as some grow on old wood, while others bloom on new wood. Some hydrangeas show off large flower heads, while others display tiny flowers. Panicle hydrangea, for instance, can grow as tall as 25 feet and has impressive flowering "trees" that reach the same height.
In conclusion, whether you're seeking a plant that offers year-round interest, such as the oakleaf hydrangea, or one with a more dainty appearance like the smooth-leaf hydrangea, there are numerous hydrangea varieties to choose from. By understanding their native ranges, hardiness zones, and growth requirements, you can select the perfect hydrangea for your own garden and enjoy their blooms for years to come.
[1] Mountain Hydrangea (Hydrangea serrata) - https://www.gardeningknowhow.com/ornamental/flowers/hydrangea/mountain-hydrangea-hydrangea-serrata.htm [3] Hydrangea quercifolia (Oakleaf Hydrangea) - https://www.gardeningknowhow.com/ornamental/flowers/hydrangea/oakleaf-hydrangea-hydrangea-quercifolia.htm
- Garden enthusiasts may consider planting seeds of the Smooth-leaf Hydrangea (Hydrangea arborescens) for a touch of beauty in their home-and-garden, as it is native to North America and thrives well in various climates.
- The selection of herbs for landscaping can be expanded with the introduction of Oakleaf Hydrangea (Hydrangea quercifolia), known for its striking foliage that transforms into vibrant hues during fall season.
- Decorative gardens can be enriched with cold-hardy flowers like the Hydrangea arborescens, offering buttiful blooms that can endure full sun and thrive with sufficient moisture in zones 3-9.
- A passion for gardening often extends beyond the outdoors, inspiring new additions to home-and-garden decor, such as ornaments or cushions featuring the charming blossoms of hydrangea plants.
- As part of a sustainable lifestyle, one might opt for gardening with native plants like the Oakleaf Hydrangea (Hydrangea quercifolia), promoting biodiversity and providing food and habitat for local wildlife.
