Haas Halo Hydrangea

Hydrangea arborescens 'Haas Halo'

Nature Hills Nursery

Elegant Lace-Cap Flowers with a Luminous White Halo Effect on Every Bloom
Cold Hardy: Thrives in Zones 3-9
Grows 4-5 ft Tall, 3-5 ft Wide
Native, Pollinator-Friendly - Attracts Bees and Butterflies
Perfect for Mass Planting in Cutting Gardens

$81⁹²

Shipping calculated at checkout.

In Stock

Enter your ZIP code to check shipping availability.

Plant Size

#3 Container

Product variants

Planting & Care

Where to Plant

Sunlight: This smooth hydrangea performs best with at least 6 hours of direct sun, which encourages strong stems that can hold up the massive blooms. While it tolerates partial shade, too much shade often leads to floppier stems and fewer flowers.
Soil: Plant in rich soil that holds moisture but drains well to prevent root rot. If you have heavy clay or sandy soil, mix in compost or peat moss at planting time to improve texture and water retention.

Watering Requirements

The large leaves of smooth hydrangeas lose water quickly, so consistent moisture is key, especially during the first year and in summer heat. If the soil dries out completely, the plant will wilt dramatically and the flower edges may turn brown. Apply a 3-inch layer of mulch around the base to keep the roots cool and moist.

Pruning Tips

Haas Halo blooms on new wood, meaning the flowers emerge on the current season's growth. Prune the stems back by about one-third in late winter or very early spring before new leaves appear. This annual "haircut" encourages vigorous new growth that is sturdy enough to support the heavy lacecap flower heads.

Fertilizer Needs

Apply a slow-release, balanced fertilizer or a formula designed for flowering shrubs in early spring as new growth begins. Avoid high-nitrogen fertilizers late in the growing season, as this pushes soft green growth that won't have time to harden off before winter.

Delivery and Shipping

Shipping Rates

Ships in 7-10 business days • Tracking provided • Weather protected

Under $50	$9.99
$50 - $99.99	$14.99
$100 - $149.99	$16.99
$150 - $198.99	$24.99
$199+	FREE

✓ Zone-specific timing • ✓ Professional packaging • ✓ Health guarantee

Understanding Our Container Sizes

At Nature Hills, our plants are sold in industry-standard nursery containers. You will notice we use the word "container" rather than "gallon." Container numbers follow a nursery trade size standard, not liquid volume. The number tells you the plant's size category and general maturity level. A larger container means a more established plant with a stronger root system.

Container Sizes

Quart

Plant age: 6 months to 1 year
Best for: Ground covers, perennials, ornamental grasses
What to expect: Our smallest and most affordable size. Well-suited for planting in multiples across a large area. Allow 1 to 2 seasons for full establishment.

#1 Container

Plant age: 1 to 2 years
Best for: Shrubs, perennials, smaller trees
What to expect: About the size of a large coffee can. A well-developed root system in a manageable size. Good value choice when you have time to let the plant grow into the space over a season or two.

#2 Container

Plant age: 2 to 3 years
Best for: Shrubs and trees where you want faster establishment
What to expect: A noticeable step up from a #1 in both plant size and root development. Good choice when you want visible presence without going to a larger size.

#3 Container

Plant age: 3 to 4 years
Best for: Most plants, most situations — flowering trees, shade trees, evergreen shrubs
What to expect: Our most popular size. Strong, developed root system. Plants in a #3 container make an immediate visual impact from day one. If you want a head start rather than waiting seasons for a plant to fill in, this is typically the right choice.

#5 Container and Larger

Plant age: 4 to 5+ years
Best for: Specimen plants, privacy screens, maximum instant impact
What to expect: Large, mature plants ready to make an immediate statement in your landscape. We also carry #7 and larger sizes for select varieties.

Why "Container" and Not "Gallon"?

Nursery container sizes follow an industry trade standard established for the nursery and horticulture industry. The number is a size designation, not a measurement of liquid volume. Actual soil volume varies by plant type, root mass, and growing medium. Using "container" is the accurate industry term. When you see #1, #2, or #3, think of it as the plant's size tier, not a gallon measurement.

Root Pouch Containers

Some Nature Hills plants arrive in a Root Pouch, a breathable fabric container made from 100% recycled materials. Root Pouches encourage denser root development through air pruning, which discourages root circling and promotes a stronger, more fibrous root ball at the time of planting.

Plants growing in Root Pouch fabric containers, showing the breathable woven fabric construction

There are two types. Knowing which one you have changes how you plant:

Degradable (brown or tan fabric): Plant the entire pouch directly in the ground. The fabric breaks down naturally in the soil over time.
Non-degradable (black or gray fabric): Remove the pouch before planting. Cut the bottom open with scissors, then peel the sides away. The fibrous root ball will hold its shape.

Not sure which type you have? Check the tag on your plant or contact us and we will confirm.

Full Root Pouch planting guide

Choosing the Right Size

Size	Plant Age	Best For
Quart	6 mo to 1 yr	Ground covers, perennials, grasses. Budget-friendly for mass plantings.
#1 Container	1 to 2 yrs	Shrubs, perennials, small trees. Value choice for patient gardeners.
#2 Container	2 to 3 yrs	Shrubs and trees where you want faster establishment.
#3 Container	3 to 4 yrs	Most plants. Immediate visual impact. Our most popular size.
#5 and larger	4+ yrs	Specimen plants, privacy screens, maximum instant impact.

Still not sure which size is right for your project? Our plant specialists are happy to help. Contact us and we will point you in the right direction.

Plant specifications
Plant Characteristics	Cold hardy, Native, Low Maintenance, Flowering, Attracts pollinators, Heat Tolerant, Container Friendly, Non-invasive
Hardiness Zone	3a, 3b, 4a, 4b, 5a, 5b, 6a, 6b, 7a, 7b, 8a, 8b, 9a, 9b
Sunlight	Full sun
Height	4-5 ft
Width	3-5 ft
Watering Needs	Moderate
Preferred Soil	Clay, Loamy, Peaty, Sandy
Growth Rate	Moderate
Growth Habit	Compact
Blooms In	Summer, Fall
Flower Color	White
Foliage Color	Green
Native	Yes
Suitable Space	Outdoors
Plant Name	Hydrangea
Botanical Name	Hydrangea arborescens 'Haas Halo'
Species	arborescens
Cultivar	Haas Halo
Class	Magnoliopsida, Cornales
Does Not Ship To	AK, HI, ID, MT, PR

Angelic White Lace-Cap Blooms Haas Halo Hydrangea!

Enormous White Blooms
Lace-Cap Flowers on Long-Stems
Upright Bushy Form
Blooms on New Wood
Deep Blue-Green Foliage
Easy Care & Low Maintenance
Part Sun Loving
Pollinators Love Them!
Habitat For Birds & Wildlife
Deer Pass This By
Very Cold Hardy
Cut & Dried Flowers

Hydrangeas are forever ingrained into the American garden scene. The beautiful flowers invoke images of white-picket fences, Nantucket beach homes, moss-draped southern mansions and shady mountain paths.

Introducing Haas Halo Hydrangea (Hydrangea arborescens 'Haas' Halo') provides a heavenly presence to your landscape!

Deep blue-green foliage is quilted and lightly-toothed, providing the lush background for the enormous lace-cap blooms! The white flowers can reach up to a foot wide and bloom around the outside of the bracts giving them a lacy appearance!

Butterflies and pollinators will not be the only ones coming in to admire the dinner plate blooms! The sturdy stems hold these enormous flower heads aloft over the bushy form!

These celestial blooms are great for cut flowers and brighten your hedges and foundation plantings! A hardy North America native plant, these are easy to grow and resilient.

How to Use Haas Halo Hydrangea In The Landscape

Haas Halo will add angelic radiance to your privacy hedges and screens. The deep green foliage looks amazing all season as a backdrop for your smaller shrubs, perennials and roses!

The leather leaves and sturdy stems won't slouch during rain and storms. While also providing lacy texture the blooms make Haas Halo an amazing specimen plant and accent.

Anchoring your planting beds and adding depth to your foundation and curb-appeal. Your neighbors will be green with envy! Wildlife too, will thank you for the dense foliage for cover and nesting, as well as providing a nectar resource for local pollinators.

A wonderful understory, these are perfectly at home along the woodland edges and tree-lined edges of your property to soften and define the transition between lawn and tree line, or to define your lawn from your neighbors.

Cutting gardens and your bouquets will get special treatment with the addition of these filigree blooms, so be sure to include these in your cutting and cottage gardens. The blooms dry on their own on the shrub for fall and winter interest, or snip a few to dry for indoor dried decor!

Of course, their size makes Haas Halo a great facer plant in front of larger shrubs. The abundant lace-cap flowers keep on blooming from summer into fall. They are fantastically sized and tough enough to handle themselves around your patio for privacy.

#ProPlantTips For Care

Hardy native plants, Hydrangea do best in part sun, preferably morning sun. Especially love afternoon shade in hotter summer climates, Haas Halo flourishes in dappled shade. However, in the cooler growing zones, Hydrangea can tolerate more sun than shade.

Not particular about the type of soil, Hydrangea prefers moisture and rich, highly organic planting sites.

Well-drained soil is essential, as is consistent soil moisture for Haas Halo Hydrangea. A generous layer of mulch helps retain soil moisture as well as insulate the root system from heat and chill.

Drought tolerant once well established, regular waterings are needed for best health during the hot summer months for the largest and longest-lived blooms.

Blooming on new wood, be sure to prune in late winter or early spring before you see new growth. Prune back for a renewal pruning every few years to keep your shrub growing vigorously.

For lacy halo's of white blooms and sturdy deep green foliage that will bring heavenly beauty to your garden, you won't be able to resist the Haas Halo Hydrangea from Nature Hills Nursery! Call for yours today!

Free shipping

On all orders over $199
Plant Sentry™

Compliant guaranteed
Easy returns

Hassle free returns policy
Live Chat

Talk to a real person

Frequently Asked Questions

What are the mature size dimensions of Haas Halo Hydrangea?

Haas Halo Hydrangea typically reaches 4-5 feet tall and wide at maturity. This compact, upright bushy form makes it perfect for foundation plantings and hedges. Allow adequate spacing of 4-6 feet between plants for proper air circulation and full development.

Is Haas Halo Hydrangea cold hardy in my region?

Haas Halo Hydrangea is very cold hardy as a North American native. This resilient shrub tolerates harsh winters well and blooms reliably on new wood each spring. Check your specific zone compatibility when you shop at Nature Hills to ensure success.

How much sun does Haas Halo Hydrangea need to flower?

Haas Halo Hydrangea thrives in part sun conditions for optimal flowering. This native hydrangea produces its enormous foot-wide lace-cap blooms best with morning sun and afternoon shade. Plant it where it receives 4-6 hours of sunlight daily for the most abundant white blooms.

When should I prune Haas Halo Hydrangea?

Prune Haas Halo Hydrangea in late winter or early spring before new growth begins. Since it blooms on new wood, you can cut it back hard without losing flowers. Remove dead stems and shape as needed in February or March for best results.

Will the flowers change color based on soil pH?

No, Haas Halo Hydrangea maintains its pure white lace-cap blooms regardless of soil pH. As a Hydrangea arborescens variety, it differs from the pH-sensitive mophead types that shift between pink and blue. You can enjoy consistent white flowers up to a foot wide without worrying about soil amendments, available at naturehills.com.

How quickly does this plant grow?

Haas Halo Hydrangea grows at a moderate pace, typically reaching 3-5 feet tall and wide within 2-3 years. As a hardy native arborescens variety, it establishes quickly once planted. Expect to see those impressive dinner plate-sized blooms in the first season since it flowers on new wood.

What pests or diseases affect this variety?

Haas Halo Hydrangea is naturally resistant to most pests and diseases, with deer typically avoiding this variety. As with most hydrangeas, watch for occasional aphids or powdery mildew in humid conditions. Ensure good air circulation and avoid overhead watering to prevent fungal issues.

Does it attract pollinators?

Yes, Haas Halo Hydrangea is excellent for attracting butterflies and other pollinators with its enormous white lace-cap blooms. The dinner plate-sized flowers provide abundant nectar resources throughout the blooming season. Plant in part sun for best pollinator appeal.