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Tree · Rosaceae family

Callery pear

Pyrus calleryana

Full sun in a garden ~5 m × ~3 m Flowers April to −29 °C
Flower colours Click a colour

In short a 10-second read

SunFull sun
in a garden after 10 years~5 m
in the wild up to 15 m
spacing 4 m
FlowersApril
PlantingMarch–April, October–November
WinterNo winter protection

Where to plant and how much to water

Sun, soil and water.

It grows best in full sun, in dry to average soil.

Sun

Sun6 hours or more
Part shade3–6 hours
Shadeunder 3 h

Soil

tolerates any pH
acidicneutralalkaline
dry to averageloamyclaysandy

Watering

regularly until establishedat the base, not on the leavesless when it rains

Frost

−29 °C
no winter protectionleafless in winter

How much space it takes

Mature size.

The mature plant next to a person (175 cm).

1 m2 m3 m4 m5 m6 m7 m8 m9 m10 m11 m12 m13 m14 m15 m10–15 mspread 4–10.5 m
10–15 m× spread 4–10.5 m

Plant 4 m apart.

Reaches maturity in about 20–50 years. The final size depends on the cultivar and the spot — we give the range from smallest to largest.

Calendar

Through the year.

Months for Central Europe. The line shows the current month.

The year at a glance

Flowers: JanuaryFlowers: FebruaryFlowers: MarchFlowers: AprilFlowers: MayFlowers: JuneFlowers: JulyFlowers: AugustFlowers: SeptemberFlowers: OctoberFlowers: NovemberFlowers: DecemberPlanting: JanuaryPlanting: FebruaryPlanting: MarchPlanting: AprilPlanting: MayPlanting: JunePlanting: JulyPlanting: AugustPlanting: SeptemberPlanting: OctoberPlanting: NovemberPlanting: DecemberFeeding: JanuaryFeeding: FebruaryFeeding: MarchFeeding: AprilFeeding: MayFeeding: JuneFeeding: JulyFeeding: AugustFeeding: SeptemberFeeding: OctoberFeeding: NovemberFeeding: DecemberJanFebMarAprMayJunJulAugSepOctNovDec
FlowersPlantingFeeding
Now, in October: a good time for planting (container plant, bare-root, root-balled).
JanFebMarAprMayJunJulAugSepOctNovDec

Flowers

JanFebMarAprMayJunJulAugSepOctNovDec

April · white

Planting

JanFebMarAprMayJunJulAugSepOctNovDec

container plant: March–April, October–November; bare-root: March–April, October–November; root-balled: March–April, October–November

Feeding

JanFebMarAprMayJunJulAugSepOctNovDec

May–June

Feeding

Nutrition.

Horn meal

up to 55 g/m² a year, if the soil needs it · May–June

JanFebMarAprMayJunJulAugSepOctNovDec

Pests and diseases

Common problems and what to do.

The most common problems in Central Europe. Protection is listed from the gentlest option.

High riskMedium riskLow riskRisk for this plant according to the source · no label = no documented level

Fire blight

Erwinia amylovora
Medium riskdisease
More about this problem

What you will see

Blossoms and shoots suddenly turn black and hang as if scorched, sticky white fluid oozes from the infections; sunken cankers form.

The source says: it is among the most commonly damaged plants.

When to look

From late spring to autumn

How to protect

  1. Prevention
    • Watch out for warm, damp springs; do not over-feed with nitrogen.
  2. By hand once detected; prune in winter dormancyCut out the infection 30–60 cm below the visible damage, expose the bark and check for brown staining; disinfect tools after every cut; burn the material.
  3. By hand after the main floweringRemove late secondary blossoms before they open.
Fire blightdisease · from late spring to autumnMedium risk

What you will see

Blossoms and shoots suddenly turn black and hang as if scorched, sticky white fluid oozes from the infections; sunken cankers form.

The source says: it is among the most commonly damaged plants.

When to look

From late spring to autumn

How to protect

  1. Prevention
    • Watch out for warm, damp springs; do not over-feed with nitrogen.
  2. By hand once detected; prune in winter dormancyCut out the infection 30–60 cm below the visible damage, expose the bark and check for brown staining; disinfect tools after every cut; burn the material.
  3. By hand after the main floweringRemove late secondary blossoms before they open.
More about this problem

Pear rust

Gymnosporangium sabinae
Medium riskdiseasesource covers the whole genus
More about this problem

What you will see

Bright orange spots on the upper side of leaves, later brown outgrowths on the underside; it also needs juniper.

The source says: it is among the susceptible hosts of pear rust.

When to look

In summer and early autumn

How to protect

  1. Prevention
    • Remove junipers (Juniperus) near pear trees.
  2. By handCut out cankers on juniper; cut out affected pear branches.

Fungicides are not recommended; no readily available fungicide effectively controls rust on edible pears.

Pear rustdisease · in summer and early autumnMedium risk

What you will see

Bright orange spots on the upper side of leaves, later brown outgrowths on the underside; it also needs juniper.

The source says: it is among the susceptible hosts of pear rust.

When to look

In summer and early autumn

How to protect

  1. Prevention
    • Remove junipers (Juniperus) near pear trees.
  2. By handCut out cankers on juniper; cut out affected pear branches.

Fungicides are not recommended; no readily available fungicide effectively controls rust on edible pears.

More about this problem
Sources (6)

Frequently asked

Quick answers.

When does Callery pear flower?

In April; the flowers are white.

Does Callery pear tolerate shade?

No, it needs full sun.

How much space does Callery pear need?

At maturity 4–10.5 m wide and 10–15 m tall; recommended spacing 4 m.

Fire blight — what can you do?

Watch out for warm, damp springs; do not over-feed with nitrogen. Cut out the infection 30–60 cm below the visible damage, expose the bark and check for brown staining; disinfect tools after every cut; burn the material.

Pear rust — what can you do?

Remove junipers (Juniperus) near pear trees. Cut out cankers on juniper; cut out affected pear branches.

Sources (14) Checked 24 October 2026

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