Hydrangea macrophylla 'Haas Halo'
shrub

Haas Halo Hydrangea

Hydrangea macrophylla 'Haas Halo'

$21.99

The Story

Plant Bio

Large, showy blooms with a unique halo effect created by florets that are markedly larger.

A lacecap type with huge flower heads, up to 14 inches across. The 'halo' consists of large, pure white sterile florets surrounding a center of smaller, creamy-white fertile flowers. Blooms age to a lime green.

Uses & Benefits:

Ornamental UsesHydrangea Haas Halo provides lush, white flower clusters that brighten shady garden spots and containers, adding a soft, romantic touch.
Practical UsesIts adaptability to partial shade makes it ideal for shaded borders and woodland gardens.
Ecological BenefitsSupports pollinators like bees and butterflies during bloom season.
SpeciesHydrangea macrophyllaBigleaf Hydrangea

Essentials

At a Glance

Plant Type

Shrub

Height

48 inches

Width

48 inches

Light

Partial Sun, Shade

Zones

4, 5, 6, 7, 8, 9

Water

Moderate

Humidity

Prefers moderate humidity

Lifespan

Perennial

Native To

Eastern United States

Toxicity

Toxic to humans and pets if ingested

Bloom period

Early summer – Late summer

J
F
M
A
M
J
J
A
S
O
N
D

In flower about 3 months of the year

Marketplace

Where to Buy

American Meadows
<1 Gal PotBarerootTrays
In Stock$21.99

Shipping costs Year-round shipping Free shipping

Planting

How to Grow

  1. Choose a location with partial shade and well-draining soil.
  2. Tuck roots into soil, water thoroughly to settle.
  3. Mulch around base to retain moisture and regulate temperature.
  4. Fertilize in early spring with a balanced, slow-release fertilizer.
  5. Prune after flowering to shape and remove dead wood.
  6. Monitor moisture levels, water during dry spells.

Pro Tip

Prefers morning sun with afternoon shade for best blooms and health.

Keep It Thriving

Care Guide

Do

  • Water regularly to keep soil moist but not waterlogged 🌱
  • Prune after flowering to maintain shape
  • Apply mulch to conserve moisture and suppress weeds
  • Feed with a balanced fertilizer in spring

Don't

  • Avoid overwatering which can cause root rot ❌
  • Don’t prune in late fall or winter
  • Refrain from placing in full sun in hot climates
  • Don’t ignore pest signs

Seasonal Care Calendar

TaskJanFebMarAprMayJunJulAugSepOctNovDec
Fertilize
Mulch
Pest Check
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Shaded garden borderWoodland garden accentPartially shaded patio container

Companion Plants

Ferns Hostas Astilbes Japanese forest grass Heucheras

Multiply

Propagation Methods

Good to Know

Common Questions

Haas Halo Hydrangea questions

What zones can Haas Halo Hydrangea grow in?

Haas Halo Hydrangea is hardy in USDA Zones 4–9. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Haas Halo Hydrangea deer resistant?

Not reliably. Deer may browse Haas Halo Hydrangea, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Haas Halo Hydrangea bloom?

Haas Halo Hydrangea typically blooms in early summer through late summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Haas Halo Hydrangea need full sun?

Haas Halo Hydrangea does best in part shade.

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Keep exploring

Grow Haas Halo Hydrangea with confidence

See it in a design of your actual yard, get zone-matched care reminders, and track it season by season in your garden journal.

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