shrubN. America Native

Pacific Ninebark

Physocarpus capitatus

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Shrub

Height

96 inches

Width

72 inches

Light

Full Sun, Partial Sun

Zones

4, 5, 6, 7, 8

Water

Moderate, drought tolerant once established

Humidity

Prefers moderate humidity

Lifespan

Long-lived shrub

Native To

Western North America

Toxicity

Non-toxic to humans and pets

The Story

Plant Bio

A deciduous shrub with arching branches and attractive foliage, known for its ornamental value. Features dense, rounded clusters (corymbs) of white, five-petaled flowers in late spring. Foliage is maple-like, and mature stems have exfoliating bark, revealing reddish-brown inner layers.

Uses & Benefits:

Physocarpus capitatus offers striking foliage and vibrant color, making it a standout shrub in borders and hedges.

Its dense branches help control erosion and provide privacy.

Supports local pollinators and provides habitat for birds.

Marketplace

Where to Buy

We couldn't find this plant listed online right now.

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Planting

How to Grow

Select a well-draining soil with neutral to slightly acidic pH.
Plant in full sun for optimal foliage color and growth.
Water regularly during the first growing season to establish roots.
Prune in early spring to shape and remove dead or damaged branches.
Apply a balanced fertilizer in early spring for vigorous growth.
Mulch around the base to retain moisture and suppress weeds.

Pro Tip

Ensure good air circulation to prevent powdery mildew and promote healthy foliage.

Keep It Thriving

Care Guide

Do

Water deeply during dry spells 💧
Prune to maintain shape and remove dead wood ✂️
Fertilize annually with a balanced fertilizer 🌱
Mulch to conserve moisture and regulate soil temperature
Monitor regularly for pests and diseases

Don't

Avoid overwatering to prevent root rot ❌
Don’t prune in late summer or fall, as it may stimulate new growth that could be damaged by frost
Avoid heavy fertilization with high nitrogen which can cause excessive leaf growth
Do not ignore pest or disease symptoms

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Mulch
Propagate
Prune

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Silvery-foliaged hedgeColorful shrub accentErosion control on slopes

Companion Plants

Spirea Barberry Forsythia Russian Sage Lavender

Multiply

Propagation Methods

Good to Know

Common Questions

Pacific Ninebark questions

What zones can Pacific Ninebark grow in?

Pacific Ninebark is hardy in USDA Zones 4–8. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

Is Pacific Ninebark deer resistant?

Yes — Pacific Ninebark is rated deer-resistant. Deer typically pass it over, though extreme hunger can override any plant's defenses.

When does Pacific Ninebark bloom?

Pacific Ninebark typically blooms in late spring to early summer through mid-summer. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Pacific Ninebark need full sun?

Pacific Ninebark does best in full sun to part shade. In hot climates, afternoon shade keeps blooms fresher longer.

Is Pacific Ninebark drought tolerant?

Yes — once established (usually after the first full season), Pacific Ninebark handles dry spells with minimal watering. Water deeply its first year to build the root system that makes that possible.