tree

Jack Callery Pear

Pyrus calleryana 'Jack Callery'

Not currently listed at our partner nurseries.

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Essentials

At a Glance

Plant Type

Tree

Height

192 inches

Width

72 inches

Light

Full Sun

Zones

4, 5, 6, 7, 8

Water

Moderate

Humidity

Adaptable

Lifespan

Short-lived tree

Native To

China, Vietnam

Toxicity

Non-toxic

The Story

Plant Bio

A deciduous ornamental pear known for its profuse spring blossoms and adaptability to urban conditions. Like all Callery pears, it has invasive potential. Jack ('Jaczam') is distinguished by its very compact, upright, and tightly columnar form, making it suitable for narrow spaces. It is one of the smallest Callery pear cultivars available.

Bloom Period:

EarlyLate

Uses & Benefits:

Valued for its extremely tight, columnar habit, making it a living exclamation point in the landscape. It offers a dense cloud of white flowers in spring and reliable fall color.

Its narrow form allows it to be used in spaces where other trees would not fit, such as along driveways, in tight courtyards, or as a vertical screen.

Like all Pyrus calleryana cultivars, it contributes to the serious ecological problem of invasive pear thickets, which choke out native ecosystems. It offers minimal wildlife value compared to native trees.

Marketplace

Where to Buy

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Planting

How to Grow

Choose a full sun site, even a narrow one.
Adapts to most soils but avoid waterlogged conditions.
Dig a hole twice the width of the root ball.
Set the tree with the root flare at or slightly above soil level.
Backfill with existing soil and water in well.
Mulch to retain moisture, keeping it away from the trunk.

Pro Tip

Due to its invasive nature, consider native columnar alternatives like 'Slender Silhouette' Sweetgum or 'Kindred Spirit' Oak.

Keep It Thriving

Care Guide

Do

Water deeply during its first growing season.
Provide full sun for best form and flowering.
Monitor for fire blight, especially in humid climates.

Don't

Do not plant where it can spread into natural areas.
Avoid excessive fertilization.
Do not plant in windy, exposed sites where it may be prone to damage.

Seasonal Care Calendar

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

Watch Out For

Pests & Diseases

Common Pests

Common Diseases

In the Garden

Landscape Uses & Companions

Landscape Uses

Narrow vertical accent for tight spacesFormal street tree for narrow parkwaysScreening in a confined area

Companion Plants

Carpinus betulus 'Frans Fontaine' Liquidambar styraciflua 'Slender Silhouette' Quercus x 'Kindred Spirit'

Multiply

Propagation Methods

Good to Know

Common Questions

Jack Callery Pear questions

What zones can Jack Callery Pear grow in?

Jack Callery Pear 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 Jack Callery Pear deer resistant?

Not reliably. Deer may browse Jack Callery Pear, especially tender spring growth — plan on repellents or fencing where pressure is high.

When does Jack Callery Pear bloom?

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

Does Jack Callery Pear need full sun?

Jack Callery Pear does best in full sun (6+ hours).

Is Jack Callery Pear drought tolerant?

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