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Ornamental Nuisances: Flowering Pear Trees

Gardening Guide: Picture Perfect Pear Guide: All You Need to Know About Growing, Harvesting, Cooking, and Eating Delicious Pears

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Ornamental Nuisances: Flowering Pear Trees

By Norann Oleson

Mature Bradford Pear tree in full bloom

Mature Bradford Pear tree in full bloom

While our focus is on pear trees that bear fruit that humans can enjoy, it is worth mentioning the Bradford and Callery flowering pear trees. They’re lovely to look at, but their fruits are tiny and hard. Growers brought the Callery pear (Pyrus calleryana) to the U.S. in 1909 to help limit the spread of fire blight in pear orchards; Callery flowering pears are very resistant to fire blight.

In the 1960s, growers developed the Bradford pear tree (Pyrus calleryana “Bradford”) from Callery pear trees. It was considered an improvement in ornamental trees: the Bradford produced a profusion of white flowers, but lacked the nasty thorns of the Callery.

The original Bradford pear tree was not self-pollinating, so it couldn’t produce viable seeds. But that changed as growers developed more cultivars from the Bradford. The resulting hybrid trees had nasty thorns like the Callery and grew fast, making them hard to control. The crossbreeding resulted in viable seeds that birds scattered after eating the tiny, hard fruits from the trees.

These trees, originally promoted as landscape features, can actually be a hazard. Bradford trees can grow up to 30 feet; their weak branch structure makes them dangerous to be around. As the tree ages, the risk of falling branches increases. These trees usually fall apart under their own weight within 20 years. The long thick thorns of the Callery pear tree are impervious to traditional tractors, and these trees can choke out native trees.

Once considered helpful and/or ornamental, forestry officials now recommend you cut down any Bradford or Callery pear trees on your property, and treat the stump with herbicide to guard against any sprouting.

Did you know that some pear trees could be so hazardous? Have you ever grown or seen Bradford or Callery pear trees? Please tell us what you think in the comments below.

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Tags

pear tree, pears

Comments
  • Glori C. January 4, 2023

    The property we bought two years ago has several mature Bradford pear trees. During the last hurricane, the winds and rain split the largest tree in half in two places, as it was loaded with tiny pears and couldn’t withstand the extra weight. It was a beautiful tree in bloom but we were warned of the danger of that happening. The other 4 trees are on the property line and are very tall and thin so must be a different cultivar compared to the huge rounded one we lost. Would not recommend planting them.

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TABLE OF CONTENTS

  • Curator’s Corner
  • Introduction
  • Featured Articles

  • Types of Pear Trees
  • Ornamental Nuisances: Flowering Pear Trees
  • Picking the Right Size Pear Tree
  • Training and Pruning your Pear Trees
  • Pairing Up For Pear Pollination
  • Pear Trees by Size and Form
  • A Word About Planning Your Pear Use
  • Choosing to Grow Pears from Seeds or Seedlings
  • Growing Pears in Open Land, in Containers, or in Raised Beds
  • Starting with the Right Soil for Your Pear Trees
  • The Right Sunlight for Your Pears
  • Should You Fertilize Your Pear Trees?
  • How—and When—to Water Your Pear Trees
  • Picking the Perfect Pear
  • How to Spot, Treat, and Prevent Pear Diseases and Pest Infestations
  • Post-Harvest Pear Crop Infections
  • Pear Pests
  • Basic Preventive Measures to Avoid Pear Tree Diseases
  • Essential Tools and Equipment for Growing and Enjoying Pears
  • Plant Profiles

  • Shinseiki Pear: Pyrus pyrifolia “Shinseiki” (Asian Pear)
  • Nijisseiki Pear: Pyrus pyrifolia “Nijisseiki” (Asian Pear)
  • Hosui Pear: Pyrus pyrifolia “Hosui” (Asian Pear)
  • Chojuro Pear: Pyrus pyrifolia “Chojuro” (Asian Pear)
  • Red Sensation Pear: Pyrus communis “Red Sensation” (European Pear)
  • Red Clapp’s Favorite Pear: Pyrus communis “Red Clapp’s Favorite” (European Pear)
  • Orient Pear: Pyrus communis “Orient” (European Pear)
  • Moonglow Pear: Pyrus communis “Moonglow” (European Pear)
  • Kieffer Pear: Pyrus communis “Kieffer” (European Pear)
  • Harrow Sweet Pear: Pyrus communis “Harrow Sweet” (European Pear)
  • Comice Pear: Pyrus communis “Comice” (European Pear)
  • Bosc Pear: Pyrus communis “Bosc” (European Pear)
  • Bartlett Pear: Pyrus communis “Bartlett” (European Pear)
  • Anjou Pear: Pyrus communis “Anjou” (European Pear)
  • Recipes

  • Chocolate Pear Cake
  • Fruit Leather
  • Pear Jam
  • Vanilla Poached Pears with Chocolate Sauce
  • Spiced Poached Pears
  • Pear Crisp
  • Additional Articles

  • Nutrition Facts about Pears
  • Health Benefits of Pears
  • Resources about Pears
  • Pear Glossary
  • Related Articles

  • Picture Perfect Pear Guide—All You Need to Know About Growing, Harvesting, Cooking, and Eating Delicious Pears

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