Red Jewel Crabapple

Full bloom

Malus 'Jewelcole'

Rosaceae · broadleaf deciduous tree · introduced

Last updated

Quick Facts

Height
15 ft (J. Frank Schmidt Crabapple Chart)
Spread
12 ft (J. Frank Schmidt Crabapple Chart; modest spread relative to height supports the upright pyramidal form)
Growth Rate
Medium (typical malus growth rate)
Light
Full Sun (Best Flower Production And Disease Resistance)
Soil
Well Drained
Water
Moderate
Hardiness
Zone Zones 4–8 (J. Frank Schmidt Crabapple Chart)
Bloom Time
Late April to mid-May (Puget Sound); mid-season blooming
Fall Color
Yellow-bronze; not a primary ornamental feature
Origin
Cultivar; introduced by Henry A. Ross at Gardenview Horticultural Park
Watch for this season

Bloom Infection Window

Spring Emergence / Primary Infection

Codling mothModerate

Pupation

Phenological Calendar

As of May 13, 2026, Puget Sound stations range from 1906.2 to 2098.2 GDD₃₂. Red Jewel Crabapple has passed full bloom (1305 GDD₃₂).

Regional Season Tracker

GDD₃₂ accumulation across 7 Puget Sound stations · as of May 13, 2026
Station GDD₃₂ Current Stage Next To Go
Issaquah / East King 2,098 Full bloom
Kent / Auburn 2,089 Full bloom
Seattle / UW 2,063 Full bloom
Olympia / Tumwater 2,025 Full bloom
Tacoma / Puyallup 1,993 Full bloom
Bellingham / Whatcom 1,972 Full bloom
Sequim / Rain Shadow 1,906 Full bloom
Stage GDD32 Typical Window
Beginning of flowering BBCH 61 990 Late April (Puget Sound)
Full bloom BBCH 65 NOW 1305 Late April to early May (Puget Sound)

Source: HortGuide regional interpretation based on Morton Arboretum bloom timing About GDD₃₂ →

Season tracker for Kent / Auburn as of May 13, 2026. Predicted dates use 16-day weather forecast through May 29, 2026, then climate normals.

Diseases: Regionally Documented (3)

Diseases: Other Associations (1)

Pests: Regionally Documented (3)

Red Jewel™ is the standout choice for Puget Sound landscapes when extended winter-into-spring fruit display is the primary design goal. The cultivar's defining feature — brilliant bright red 1/2-inch fruit that holds on the tree until spring in mild winter areas — is maximally expressed in maritime PNW where winters are mild enough to preserve fruit color and structure through December, January, and into February. The dramatic moment when previous-season red fruit overlaps with the cultivar's pure white spring bloom is unique among common crabapples and gives Red Jewel substantial mid-winter ornamental value that most crabapples cannot match. The upright pyramidal 15 × 12 ft form distinguishes from rounded crabapple silhouettes and fits narrower spaces. Fire blight susceptibility (rated Fair by JFS) is the primary regional caveat — warm humid May bloom periods that produce blight pressure in maritime PNW will eventually affect this cultivar, so avoid spring pruning entirely and prune in late winter (February in Puget Sound). Cross-reference: 'Indian Magic' offers similar exceptionally persistent fruit (also holds into spring) but with deep rose-pink flowers rather than pure white; 'Sugar Tyme®' offers similar persistent fruit habit with white flowers but in a smaller fruit size; 'Donald Wyman' offers persistent fruit and white flowers but in a much wider 24 ft spread. Red Jewel is the upright narrow-form choice in this category. Robins, waxwings, and finches eventually clear the fruit in late February through April — providing important late-winter forage when most alternate food sources are depleted.

— Chris Welch, ISA Certified Arborist

Data Maturity
Structured Multiple sources. Expert review underway.