Curated Pomology Guide · Bloom Group 3

Rescue Pear Pollination & Compatibility Guide

Rescue pear pollination guide: Pacific Northwest heritage, large fruit sizing, partial self-set, and maritime scab resistance.

Pomological Verdict & Botanical Profile

Rescue is Self-Sterile (Needs 1 Diploid Partner)

Viable Pollen Donor (Reciprocal Pollinizer)

Pacific Northwest discovery (rescued near Vancouver, BC; tested at WSU Mount Vernon). High scab resistance; partially self-fertile in maritime climates but sets more reliably with a partner. Rescue needs at least one compatible pollinizer from bloom group 2–4 to set a reliable crop. It is often sold as self-fertile, and it will set a reduced crop alone in partially self-fertile in mild coastal climates; benefits from cross-pollination — but that is climate-dependent, not genetic, so plan a pollinizer.

Chromosome Ploidy
Diploid (2n)
Required Companions
1 Diploid Partner
Bloom Group
Group 3 (Early-Spring)
Harvest Timing
Early (-14d from Conference)
Primary Uses:Dessert
Disease Resistance: moderate fire blight resistanceGeneral Notes: Very hardy

Flowering Period & Overlap Window

Pear flowering periods are compressed into numbered bloom groups (1 through 4). Cross-pollination requires overlapping blossom timing between genetically compatible cultivars, with Asian pears flowering 7–14 days ahead of mid-season European varieties.

Flowering Overlap Range for Rescue
Early Overlap
Group 2
Rescue
Group 3
Late Overlap
Group 4

Any compatible diploid pear flowering within Group 2 to 4 provides matching blossom overlap.

Compatible Pollination Partners (22)

Test in Checker
CultivarBloom GroupOverlap TypeHarvestPrimary UsesInteractive Test
Group 3Full Overlap
Mid
Concurrent (±0d)
Fresh Eating, CanningTest Cross
Group 3Full Overlap
Late
±7d delta
Fresh Eating, CanningTest Cross
Group 3Full Overlap
Mid
±7d delta
Fresh Eating, CanningTest Cross
Group 3Full Overlap
Early
±11d delta
Fresh EatingTest Cross
Group 3Full Overlap
Mid
±14d delta
Fresh Eating, CookingTest Cross
Group 3Full Overlap
Late
±14d delta
Fresh Eating, CookingTest Cross
Group 3Full Overlap
Mid
±14d delta
Fresh EatingTest Cross
Group 3Full Overlap
Late
±28d delta
Fresh Eating, BakingTest Cross
Group 3Full Overlap
Late
±28d delta
Fresh EatingTest Cross
Group 3Full Overlap
Mid
±28d delta
Fresh Eating, StorageTest Cross
Group 3Full Overlap
Late
±28d delta
Fresh EatingTest Cross
Group 3Full Overlap
Late
±35d delta
Fresh Eating, CanningTest Cross
Group 2Full Overlap
Mid
Concurrent (±0d)
Fresh Eating, CanningTest Cross
Group 2Full Overlap
Early
±6d delta
Canning, JellyTest Cross
Group 4Full Overlap
Late
±7d delta
Fresh Eating, StorageTest Cross
Showing top 15 of 22 compatible partners, ranked by bloom synchrony, recommendations, and harvest alignment. Explore the full supported partner list in the Fruit Tree Pollination Checker.

Incompatible Varieties & Exclusions (4)

These pear varieties overlap in flowering time with Rescue but cannot fertilise it due to non-viable pollen (male-sterile diploids), direct parentage exclusions, or shared incompatibility alleles.

Gourmet produces no viable pollen, so it cannot serve as a pollinizer.

Luscious produces no viable pollen, so it cannot serve as a pollinizer.

Magness produces no viable pollen, so it cannot serve as a pollinizer.

Warren produces no viable pollen, so it cannot serve as a pollinizer.

Pomological Assessment: Heritage Pacific Northwest Sizing, Maritime Scab Resistance & Pollination

Discovered in Buckeye, Washington, Rescue is a distinguished heritage pear of the Pacific Northwest celebrated for its enormous fruit size, often weighing over 400 grams. The skin turns bright creamy-yellow with an eye-catching orange-red blush, enclosing sweet, buttery, melting flesh.

Rescue is a diploid cultivar placed in Bloom Group 3. While it can display partial self-fertility in mild coastal maritime pockets, planting alongside compatible Bloom Group 3 diploids—such as Conference, Bosc, or Bartlett—ensures regular annual cropping, uniform fruit sizing, and high first-grade yields.

The tree is hardy and vigorous, producing sturdy branches that tolerate maritime winds. Fruit thinning is recommended when set is heavy to avoid undersized fruit and limb breakage under the weight of mature pears. Its distinctive fruit size and attractive bi-colour skin make Rescue a popular specialty cultivar for direct-market growers and autumn fruit displays. The wood is sturdy and resilient, tolerating maritime gales and heavy autumn rainfall without significant premature fruit drop.

Key Orchard Considerations for Rescue

Rootstock & Graft Compatibility

Grafts reliably onto OHxF 87 rootstock. Requires a vigorous root system to support its heavy, large-fruited crop loads without branch breakage.

Fire Blight & Disease Pressure

Displays notable resistance to pear scab in cool, damp maritime springs. Moderate tolerance to fire blight.

Harvest Window & Post-Harvest Handling

Picks early mid-season (September). Ripens smoothly with minimal refrigeration; best marketed fresh or processed into canned halves and pear purees.

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