Is it worth it to grow the Warren pear

@elivings1

Use this link Online pollination checker for fruit trees. We do know that these pears listed below work to pollinate Magness. Graft a limb on your Magness and your problems are over.

Magness pear trees

Magness (Pyrus communis) is in flowering group 3. Magness is not self-fertile and needs a pollination partner of a different variety nearby.

Varieties that will pollinate Magness in our catalog

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An early-season American pear variety, related to Bartlett but with an improved flavor and better storage.

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A modern fireblight resistant pear, which ripens mid-season, about a week later than Bartlett.

  • Flowering group: 3

  • Not self-fertile

  • Picking:

  • Brandy

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A mid-season English perry pear which produces a low-tannin juice.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Late

  • Butt

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Butt is a traditional English perry pear, with medium acidity and medium tannins.

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A traditional European pear from Belgium, with the classic rich sweet buttery melting flesh. Flemish Beauty is also self-fertile and cold-hardy.

  • Flowering group: 3

  • Self-fertile

  • Picking: Mid

  • Gin

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A rare English perry pear variety with good disease resistance and medium acid and tannins.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Very late

  • Harrow Crisp

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An attractive disease-resistant early-season pear with an orange flushed yellow skin, related to Bartlett and with a similar flavor.

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Harrow Delight is an early-season Bartlett-style pear with a sweet flavor and good disease-resistance.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Early

  • Harrow Sweet

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A disease-resistant heavy-cropping late-season pear with an excellent sweet flavor for eating fresh.

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A well-known English perry pear variety, and a reliable cropper. Makes a light, low-tannin perry.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Late

  • Honeysweet

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Honeysweet is a self-fertile small late-season sweet pear, with buttery flesh, related to Seckel.

  • Flowering group: 3

  • Self-fertile

  • Picking: Late

  • Hosuiin stock

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Hosui has perhaps the best flavor of any Asian pear - it is very juicy and very sweet.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Early

  • Available rootstocks:

  • Vigorous

  • Korean Giant

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Korean Giant has potentially the largest fruits of any Asian pear variety.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Late

  • Moonglow

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A high quality early season dessert and culinary pear, very resistant to fireblight.

  • Flowering group: 3

  • Good pollinator

  • Not self-fertile

  • Picking: Early

  • Niitaka

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Niitaka is an Asian pear variety producing very large crisp russeted fruits.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Mid

  • Potomac

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A natural sport of Clapp’s Favorite pear, also known as Kalle. The pears are deep red color with a sweet flavor, ripening in late summer.

  • Flowering group: 4

  • Not self-fertile

  • Picking: Early

  • Shenandoahin stock

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Shenandoah is a late-season Bartlett-style pear, with a rich sweet/sharp flavor.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Late

  • Available rootstocks:

  • Semi-vigorous

  • Shinko

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A classic Asian pear, with large golden brown russeted fruits which have a crisp sweet flesh.

  • Flowering group: 2

  • Not self-fertile

  • Picking: Late

  • Shinseiki

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This popular early-season Asian pear variety produces crisp sweet-flavored pears, which can be kept for up to 3 months.

  • Flowering group: 3

  • Partially self-fertile

  • Picking: Early

  • Shinsuiin stock

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A popular and productive early-season Asian pear with a glowing golden brown skin and a sweet flavor.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Early

  • Available rootstocks:

  • Vigorous

  • Winnals Longdon

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A traditional English perry pear variety, which produces a low tannin perry.

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A popular English perry pear which produces a good quality low-tannin / medium-acid perry.

  • Flowering group: 3

  • Not self-fertile

  • Picking:

  • Yoinashi

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Yoinashi is a mid-season Asian pear, with large golden brown russeted fruits.

  • Flowering group: 3
  • Not self-fertile
  • Picking: Mid

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What about Doyenne du Comice you might ask?

Pollination of Doyenne du Comice pear trees

Doyenne du Comice (Pyrus communis) is in flowering group 4. Doyenne du Comice is not self-fertile and needs a pollination partner of a different variety nearby.Choose another variety

Varieties that will pollinate Doyenne du Comice in our catalog

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An early-season American pear variety, related to Bartlett but with an improved flavor and better storage.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Early

  • Bartlett

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A classic English pear, easy to grow, and a good flavor.

  • Flowering group: 3

  • Partially self-fertile

  • Picking: Early

  • Beurre Bosc

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A traditional French pear with buttery melting flesh.

  • Flowering group: 5

  • Good pollinator

  • Not self-fertile

  • Picking: Late

  • Blake’s Pride

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A modern fireblight resistant pear, which ripens mid-season, about a week later than Bartlett.

  • Flowering group: 3

  • Not self-fertile

  • Picking:

  • Brandy

Check pollinators >

A mid-season English perry pear which produces a low-tannin juice.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Late

  • Butt

Check pollinators >

Butt is a traditional English perry pear, with medium acidity and medium tannins.

Check pollinators >

A traditional European pear from Belgium, with the classic rich sweet buttery melting flesh. Flemish Beauty is also self-fertile and cold-hardy.

  • Flowering group: 3

  • Self-fertile

  • Picking: Mid

  • Gin

Check pollinators >

A rare English perry pear variety with good disease resistance and medium acid and tannins.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Very late

  • Harrow Crisp

Check pollinators >

An attractive disease-resistant early-season pear with an orange flushed yellow skin, related to Bartlett and with a similar flavor.

Check pollinators >

Harrow Delight is an early-season Bartlett-style pear with a sweet flavor and good disease-resistance.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Early

  • Harrow Sweet

Check pollinators >

A disease-resistant heavy-cropping late-season pear with an excellent sweet flavor for eating fresh.

Check pollinators >

A well-known English perry pear variety, and a reliable cropper. Makes a light, low-tannin perry.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Late

  • Honeysweet

Check pollinators >

Honeysweet is a self-fertile small late-season sweet pear, with buttery flesh, related to Seckel.

  • Flowering group: 3

  • Self-fertile

  • Picking: Late

  • Hosuiin stock

Check pollinators >

Hosui has perhaps the best flavor of any Asian pear - it is very juicy and very sweet.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Early

  • Available rootstocks:

  • Vigorous

  • Korean Giant

Check pollinators >

Korean Giant has potentially the largest fruits of any Asian pear variety.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Late

  • Moonglow

Check pollinators >

A high quality early season dessert and culinary pear, very resistant to fireblight.

  • Flowering group: 3

  • Good pollinator

  • Not self-fertile

  • Picking: Early

  • Niitaka

Check pollinators >

Niitaka is an Asian pear variety producing very large crisp russeted fruits.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Mid

  • Potomac

Check pollinators >

Check pollinators >

A natural sport of Clapp’s Favorite pear, also known as Kalle. The pears are deep red color with a sweet flavor, ripening in late summer.

  • Flowering group: 4

  • Not self-fertile

  • Picking: Early

  • Shenandoahin stock

Check pollinators >

Shenandoah is a late-season Bartlett-style pear, with a rich sweet/sharp flavor.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Late

  • Available rootstocks:

  • Semi-vigorous

  • Shinseiki

Check pollinators >

This popular early-season Asian pear variety produces crisp sweet-flavored pears, which can be kept for up to 3 months.

  • Flowering group: 3

  • Partially self-fertile

  • Picking: Early

  • Shinsuiin stock

Check pollinators >

A popular and productive early-season Asian pear with a glowing golden brown skin and a sweet flavor.

  • Flowering group: 3

  • Not self-fertile

  • Picking: Early

  • Available rootstocks:

  • Vigorous

  • Winnals Longdon

Check pollinators >

A traditional English perry pear variety, which produces a low tannin perry.

Check pollinators >

A popular English perry pear which produces a good quality low-tannin / medium-acid perry.

  • Flowering group: 3

  • Not self-fertile

  • Picking:

  • Yoinashi

Check pollinators >

Yoinashi is a mid-season Asian pear, with large golden brown russeted fruits.

  • Flowering group: 3
  • Not self-fertile
  • Picking: Mid

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Warren Pear Trees are said to be self-fertile. We can as the name implies get fruit with only one plant. It would be very few fruit! The tree is very difficult to pollinate well for whatever reason so I grow mine with Karl’s favorite aka ewart grafted into the same tree which works.

If you went to Warren Pear – Trees of Antiquity you will find this description
The Warren pear tree was named for Thomas O. Warren, a founding father of the North American Fruit Explorers (NAFEX), who discovered this gem in Mississippi, in 1976. The Warren pear is medium to large, long-necked, drop-shaped fruit is faded green with an occasional red blush in full sun. That said, the Warren pears can vary in size and shape. The pears are rated equal to Magness by many. The Warren pears are sweet, spicy and very juicy, buttery, silky flesh with no grit. Pyramidal tree shape. Fire blight resistant. One of the best for providing a source of pollen to other European pear trees. Please refer below for more information on the Warren pear trees for sale.

OK finally to answer your question almost all pear trees are suitable for pollinating each other as long as they bloom at the same time. Harrow delight might be a better pear for pollination grafted on another for multiple reasons. It’s my opinion avoiding pears with similar genetics is best. Siblings or parents are not good pollinators. They will work in some cases but trees of diverse genetics work better. Magness and Warren are siblings and comice a parent. Someone is going to say it so before they do there is a term called pathenocarpic which applies to comice.
In climates such as California comice may produce fruit with no pears around sometimes. This link mentions it Pollination – Pear | WSU Tree Fruit | Washington State University

I discuss that term here Parthenocarpic Pears

Finally there is a wild card in here that needs discussed which is the callery pear. We know it naturalizes all over the country now and was added to some states invasive lists. It’s highly unlikely you live in an area free from ornamental wild or tame pears and they will pollinate your pear trees. Why if Warren is related to comice would it not be parthenocarpic as well like its parent? The fascinating truth is that it is said to be parthenocarpic on some websites but is also reportedly self pollinating at half the references available. My Warren definately has pollination issues. My crops are very heavy in comparison to what others get but my tree is half ewart aka Karl’s favorite. Ewart pear I grew specifically to pollinate Warren Karl's Favorite aka Ewart Pear . Finally understanding pollination is key which is described here Pollination Requirements - Cooperative Extension: Tree Fruits - University of Maine Cooperative Extension

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