Sevenbark 'Haas' Halo' Hydrangea arborescens 'Haas' Halo'
Other Common Name(s):
- Phonetic Spelling
- hy-DRAN-jee-uh ar-bor-RES-senz
- Description
-
Wild hydrangea ‘Haas’ Halo’ is a woody, deciduous, perennial shrub cultivar in the Hydrangeaceae (hydrangea) family with a mounding habit lace-cap flowers and a rapid growth rate. At maturity it will be 4 to 6 feet tall and 3 to 5 feet wide. The parent plant is native to North America. The name hydrangea is derived from Greek and Latin and taken to mean water vessel, in reference to the "cup-like form of the seed-capsule."
Provide this shrub with moist to occasionally dry soil and while it withstands partial or deep shade, the best flowering will occur in full sun. 'Haas Halo' withstands heat and humidity better than other smooth hydrangeas as long as it has plenty of water. It tolerates various soil textures as long as they have a neutral to acidic pH. Prune the shrub back in the spring to encourage a larger flower display. Note that the flowers will appear on new growth.
This hydrangea features very large, lace-cap blooms from June through July. The flowers attract bees and butterflies. The foliage is a deep blue-green, and the stout stems will not droop after a hard rain. Dried flower heads provide winter interest.
Plant it in mass in a woodland, pollinator, or winter garden. Use in a shrub border or as an accent or specimen or planted near a lawn or plant it in a cutting garden.
Insects, Diseases, and Other Plant Problems: No significant problems.
VIDEO Created by Elizabeth Meyer for "Trees, Shrubs and Conifers" a plant identification course offered in partnership with Longwood Gardens.
- Profile Video:
- See this plant in the following landscape:
- Cultivars / Varieties:
-
- Tags:
- Cultivars / Varieties:
-
- Tags:
-
-
Attributes:
- Genus:
- Hydrangea
- Species:
- arborescens
- Family:
- Hydrangeaceae
- Life Cycle:
- Woody
- Wildlife Value:
- Bees and butterflies are attracted to this plant.
- Dimensions:
- Height: 4 ft. 0 in. - 6 ft. 0 in.
- Width: 3 ft. 0 in. - 5 ft. 0 in.
-
-
Whole Plant Traits:
- Plant Type:
- Perennial
- Woody Plant Leaf Characteristics:
- Deciduous
- Habit/Form:
- Mounding
- Growth Rate:
- Rapid
- Texture:
- Coarse
-
-
Cultural Conditions:
- Light:
- Deep shade (Less than 2 hours to no direct sunlight)
- Full sun (6 or more hours of direct sunlight a day)
- Partial Shade (Direct sunlight only part of the day, 2-6 hours)
- Soil Texture:
- Clay
- High Organic Matter
- Loam (Silt)
- Sand
- Soil pH:
- Acid (<6.0)
- Neutral (6.0-8.0)
- Soil Drainage:
- Moist
- Occasionally Dry
- Available Space To Plant:
- 3 feet-6 feet
- NC Region:
- Coastal
- Mountains
- Piedmont
- USDA Plant Hardiness Zone:
- 3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
-
-
Fruit:
- Display/Harvest Time:
- Fall
- Fruit Type:
- Capsule
- Fruit Description:
- Dehiscent seed capsules
-
-
Flowers:
- Flower Color:
- White
- Flower Inflorescence:
- Corymb
- Head
- Flower Value To Gardener:
- Good Dried
- Showy
- Flower Bloom Time:
- Summer
- Flower Description:
- Lace-cap flowers are up to 8 inches across. Outer showy white florets are sterile while the small greenish inner florets are fertile. Dried flower heads provide late-season interest. Blooms from mid June through early July.
-
-
Leaves:
- Woody Plant Leaf Characteristics:
- Deciduous
- Leaf Color:
- Blue
- Green
- Leaf Feel:
- Leathery
- Smooth
- Leaf Type:
- Simple
- Leaf Shape:
- Cordate
- Ovate
- Leaf Margin:
- Serrate
- Hairs Present:
- No
- Leaf Length:
- 3-6 inches
- Leaf Width:
- 3-6 inches
- Leaf Description:
- Leathery leaves may appear deep bluish-green. They are 3-6 inches long with toothed margins, rounded base and pointed tip.
-
-
Stem:
- Stem Is Aromatic:
- No
-
-
Landscape:
- Landscape Location:
- Lawn
- Woodland
- Landscape Theme:
- Cutting Garden
- Pollinator Garden
- Shade Garden
- Winter Garden
- Design Feature:
- Accent
- Border
- Mass Planting
- Specimen
- Attracts:
- Bees
- Butterflies
- Resistance To Challenges:
- Heat
- Heavy Shade
- Humidity
