Flowering Pear, Callery Pear 'Aristocrat'

Pyrus calleryana

Family: Rosaceae (ro-ZAY-see-ee) (Info)
Genus: Pyrus (PY-russ) (Info)
Species: calleryana (kal-lee-ree-AH-nuh) (Info)
Cultivar: Aristocrat



Foliage Color:

Unknown - Tell us

Bloom Characteristics:

Unknown - Tell us

Water Requirements:

Average Water Needs; Water regularly; do not overwater

Where to Grow:

Unknown - Tell us


30-40 ft. (9-12 m)

over 40 ft. (12 m)


30-40 ft. (9-12 m)


USDA Zone 4a: to -34.4 C (-30 F)

USDA Zone 4b: to -31.6 C (-25 F)

USDA Zone 5a: to -28.8 C (-20 F)

USDA Zone 5b: to -26.1 C (-15 F)

USDA Zone 6a: to -23.3 C (-10 F)

USDA Zone 6b: to -20.5 C (-5 F)

USDA Zone 7a: to -17.7 C (0 F)

USDA Zone 7b: to -14.9 C (5 F)

USDA Zone 8a: to -12.2 C (10 F)

USDA Zone 8b: to -9.4 C (15 F)

USDA Zone 9a: to -6.6 C (20 F)

USDA Zone 9b: to -3.8 C (25 F)

USDA Zone 10a: to -1.1 C (30 F)

Sun Exposure:

Full Sun



Bloom Color:

White/Near White

Bloom Time:

Late Winter/Early Spring




Other details:

May be a noxious weed or invasive

Soil pH requirements:

Unknown - Tell us

Patent Information:

Unknown - Tell us

Propagation Methods:

Self-sows freely; deadhead if you do not want volunteer seedlings next season

Seed Collecting:

Unknown - Tell us


This plant has been said to grow in the following regions:

Dewey, Arizona

Clovis, California

Los Angeles, California

Mountain View, California

North Fork, California

Ventura, California

Denver, Colorado

South Windsor, Connecticut

Keystone Heights, Florida

Lake Bluff, Illinois

Henderson, Nevada

Langhorne, Pennsylvania

Lake Dallas, Texas

Orem, Utah

show all

Gardeners' Notes:


On Apr 4, 2014, coriaceous from ROSLINDALE, MA wrote:

I concluded that this tree is an inferior ornamental long before I found out that it's also commonly invasive.

The lifespan of a callery pear is typically 10-15 years, with luck perhaps 20. (Dirr) I can't count the number of callery pears I've seen split and disintegrate before reaching maturity, because the tree's architecture can't support its own weight, especially in windy, snowy, or icy weather. Since 'Bradford', many cultivars have been released which are claimed to have stronger architecture, but they all have this propensity to splitting, and in the landscape I still see few surviving into maturity.

The flowers are pretty and very early, but they have a powerful pervasive stink.

The foliage is attractive and rarely troubled by disease. F... read more


On Apr 1, 2012, jjh422d from South Windsor, CT (Zone 6a) wrote:

It may be invasive, but you cannot prove that by the tree in my yard. In fact, if I could find a seedling from this tree, I would probably plant it somewhere else in my yard.

This tree has withstood a hurricane, multiple windstorms and last October's unfortunate snowstorm and still held up beautifully. After the freak October snowstorm, it did suffer some damage, but overall it maintained its shape. I also had a Bradford Pear tree in my yard for that storm and that one got completely destroyed.

And here it is spring time again and this tree has such beautiful and abundant flowers I am glad that I have one. Definitely the flowers are not aromatic (or at least pleasantly so), but much less noticable than the old Bradford Pear tree.


On Jun 12, 2011, Finlock from Howell, MI wrote:

Planted 2 trees identical, 7 years ago. Both flowered this spring, and leaves began to appear on one of the trees but very sparingly. They were green and after 2 weeks they turned brown and the tree now looks like it's dead. The other tree appears in good condition. Took samples to our county extension and they can't find an answer to what is going on with the tree. No previous issues with either tree. Has anyone had this problem?


On Apr 2, 2008, vincenma from Oxford, OH wrote:

This is a horribly invasive weedy species. In my opinion, it should never be planted. See my article on the subject:
Vincent, M.A. 2005. On the spread and current distribution of Pyrus calleryana in the United States. Castanea 70: 20-31.


On Jan 7, 2005, smiln32 from Oklahoma City, OK (Zone 7a) wrote:

This cultivar grows to 35-45' high and 30-35' wide. It is a fast grower with widely-spaced, upright branches. It is not as susceptible to wind and ice damage as other known cultivars. The leaves emerge as red/purple, then become glossy green with a slightly reddish hue. Fall color again becomes red. Fine in urban settings.


On Oct 4, 2004, Pebbles8 wrote:

I have this flowering pear and it does the weirdest thing , it flowers in the spring AND the fall. In the fall we have no leaves at all but the flowers are there. It is still a small tree but I love it. Vikki


On May 18, 2004, sweezel from McKinney, TX (Zone 8a) wrote:

This cultivar is now recommended instead of the over used 'Bradford'. It has a much wider branching habit and so is much more resistant to storm damage. The tree has a more Pyramidal shape. Also, the leaves are not as flat and round as 'Bradford', and instead are more oblong with wavy-er margins.

There are many Callory pears in my community. About a fourth of them are 'Aristocrat' and the rest are 'Bradford'. The Aristocrat seem to have a more natural look and bloom a whole lot better than the Bradford.