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A highly flavored, late-season dessert apple, perfect for organic production.
Kalle Pear on OHxF 87 (Spring 2026)
A beautiful, red-skinned early pear. Also known as Red Clapp's, Red Kalle, Starkrimson™.
Kalle is a red sport of Clapp Favorite and behaves much like its parent. The tree is large, upright-spreading, very productive, and it is a reliable pollenizer with no incompatibility issues. It is resistant to rust, susceptible to fireblight, and very susceptible to scab. It performs well in a wide range of growing conditions, particularly the Pacific Northwest.
The fruit is a dramatic, deep red pear that ripens about ten days before Bartlett. It is an attractive landscape feature and would make a stunning espalier. The fruit quality at harvest is outstanding, with sweet, melting flesh. Unfortunately Kalle does not ship or store well.
This sport was discovered by Adrian G. Kalle of South Haven Michigan. It was introduced by Stark Bros. Nursery in 1970 under the trademarked name Starkrimson.
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The Fruit
Fruit Type
Category: Pear
Subcategory:
European, Cold-Hardy
Fruit Uses & Storage
Uses: fresh eating, baking
Storage duration: less than one month (approximate, depending on storage conditions)
Fruit Appearance
Skin color: red
Flesh color: white
Fruit Origins
Parentage: sport of Clapp Favorite
Origin: Michigan
Introduced in: 1970
Introduced by: Adrian G. Kalle
The Environment
Calendar & Geography
USDA zones: 4 - 8
Chill hours: Not yet determined
Ripening date: Aug 10 (approximate, in New York State) 10 days before Bartlett
Tree Height & Spacing
glossary
Rootstock: OHxF 87 Rootstock
Rootstock size class: Half-Standard (75% of Standard)
Tree spacing: See details
Good for wildlife planting? N
Diseases & Pests
glossary
Fireblight: Susceptible
Pear Scab: Very Susceptible
Quince Rust: Resistant
Pollination
Pollination Factors
glossary
Bloom group: 3
Is it self-fertile? N
Is it fertile? Y
Ploidy: Diploid
Rootstock size class:
Half-Standard (75% of Standard)
Pollination Partners
This table shows the first few results from a full search for pollenizers of Kalle Pear on OHxF 87. Please see our Pollenizer Search to run other queries and read how the application uses various factors. Also read more about fruit tree pollination.
See all pollination matches for Kalle Pear on OHxF 87
SF 8.38
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