shrub

Houpara

The Story

Plant Bio

Pseudopanax lessonii, known as houpara, is a slow-growing evergreen shrub or small tree native to the coastal forests of New Zealand's North Island. It develops a rounded to spreading form with stout branches and smooth brown bark marked by prominent leaf scars.

The species undergoes a dramatic foliage transformation, bearing large, five-lobed juvenile leaves that transition to smaller, three-lobed, leathery mature leaves. In summer, it produces terminal clusters of inconspicuous yellow-green flowers followed by small, purple-black fruits.

Uses & Benefits:

Highly valued for its architectural form, glossy evergreen foliage, and dramatic leaf transformation from juvenile to mature stages.

Excellent salt tolerance makes it highly effective as a windbreak or structural specimen in coastal gardens.

Provides structural cover for local wildlife and attracts native pollinating insects with its summer flowers.

Essentials

At a Glance

Plant Type

Shrub

Height

240"

Width

120"

Light

Full Sun, Partial Sun

Zones

9, 10

Water

Moderate

Humidity

Moderate

Lifespan

Multi-decade

Native To

New Zealand

Toxicity

Non-toxic

Bloom period

Summer – Fall

In flower about 6 months of the year

Planting

How to Grow

Select a planting site with fertile, humus-rich, well-draining soil in full sun to partial shade.
Dig a hole twice as wide as the root ball and of equal depth, ensuring the plant sits at the same level as in its container.
Backfill with native soil, firm gently to remove air pockets, and water thoroughly to settle the soil.
Apply a layer of organic mulch around the base to retain moisture, keeping it clear of the main stem.

Pro Tip

Never prune back into old, leafless bare wood, as the plant lacks latent buds in mature stems and will fail to regenerate.

Keep It Thriving

Care Guide

Do

Water moderately during the growing season, allowing the top soil layer to dry slightly between waterings.
Apply a balanced liquid fertilizer monthly from spring through summer to support active growth.
Protect young plants from hard, prolonged frosts below 23°F (-5°C).

Don't

Do not plant in heavy, poorly drained clay soils that hold stagnant water.
Do not prune back into old, leafless wood as it will not regenerate.
Do not over-fertilize, which can lead to weak, leggy growth.

Seasonal Care Calendar

Task	Jan	Feb	Mar	Apr	May	Jun	Jul	Aug	Sep	Oct	Nov	Dec
Fertilize
Pest Check
Propagate
Prune
Winter Prep

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Coastal windbreaksArchitectural specimen plantingCourtyard focal pointsMixed shrub borders

Companion Plants

Fatsia japonica Phormium tenax Coprosma repens

Multiply

Propagation Methods

Good to Know

Common Questions

Houpara questions

What zones can Houpara grow in?

Houpara is hardy in USDA Zones 9–10. Inside that range it survives winter in the ground; outside it, grow it as an annual or a container plant you protect.

When does Houpara bloom?

Houpara typically blooms in summer through fall. Exact timing shifts a week or two with your zone — Sow's bloom calendar maps it to your garden.

Does Houpara need full sun?

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

Is Houpara drought tolerant?

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