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Maule's quince (Chaenomeles japonica)

Chaenomeles japonica is a perennial deciduous woody plant that forms a thorny, spreading to broadly spreading, often multi-stemmed shrub and can expand by root suckers into clumps.

LightIt grows in full sun to partial sun, with full sun more suitable for better flowering.
WaterWell-drained conditions are preferred, and the soil may be kept moist but well drained; watering is normal in summer and substantially reduced in winter.
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Maule's quince illustration

Overview

Chaenomeles japonica is a perennial deciduous woody plant that forms a thorny, spreading to broadly spreading, often multi-stemmed shrub and can expand by root suckers into clumps.

Origin and habitat

Sources differ on descriptions of its native range in Japan, with central to southern Japan given as the principal native range. It occurs in low-mountain woodland and in sunny environments such as mountain slopes, grassland, and riverbanks. It is reported from temperate Asian environments.

Characteristics

Sources differ on mature height, placing it at about 30–100 cm, while limited sourcing reports a mature spread of about 150–250 cm. Sources differ on growth rate and on some leaf descriptions; the green leaves range from roughly lance-shaped to obovate, with another description calling them elliptic, and they have serrated margins and may be hairless or glossy, while the large stipules are kidney-shaped and serrated. Flowers are usually clustered and commonly orange, orange-red to brick-red, with pink, white, or multicolored forms also occurring; flowering is mainly from late winter through spring, often before or while the leaves emerge, with some sources recording a smaller repeat bloom in summer. The ripe fruit is yellow to golden yellow, fragrant, and may be spherical, apple-shaped, or nearly barrel-shaped.

Light

It grows in full sun to partial sun, with full sun more suitable for better flowering.

Watering

Well-drained conditions are preferred, and the soil may be kept moist but well drained; watering is normal in summer and substantially reduced in winter.

Growing medium and mounting

It tolerates a broad range of soils, including chalk, clay, loam, and sand, and prefers good drainage; it can grow in acidic, neutral, or alkaline soil, although calcareous or high-pH soil may slow growth and cause yellowing.

Feeding

Some sources recommend organic fertilizer in autumn and winter and chemical fertilizer in spring, while USDA information describes its fertility requirement as low.

Propagation

It can be propagated by seed, cuttings, and division, with root cuttings also recorded by a source. Sources differ on the cold-stratification requirements for seed propagation.

Common problems

New shoots are reported to be susceptible to aphids, with scale insects and mites occasionally reported as problems. In rainy years, fungal leaf spot is reported to occur and may cause leaf drop when severe. High-pH or calcareous soil may cause slow growth or yellowing; root suckers can spread the plant outward, and thorny branches can readily catch debris. USDA information describes drought tolerance as high, while rainy years may increase the risk of fungal leaf spot and leaf drop.

Identification

Chaenomeles japonica is low and broadly spreading with thorny branches; conspicuous orange-red to red flowers often appear before the leaves unfold, followed by fragrant yellow fruit, and large kidney-shaped stipules are another identifying feature.

Photos

Chaenomeles japonica
📷 H. Zell · CC BY-SA 3.0 · source
Chaenomeles japonica
📷 George Chernilevsky · CC BY-SA 4.0 · source
Chaenomeles japonica
📷 Mark Richman, some rights reserved (CC BY), uploaded by Mark · CC BY · source

Sources