Asian pear / nashi

Photo: Unknown — CC BY-SA 3.0 · source

Survives zone 5 through 9

Harvest calendar

Best planted in early spring after your last frost, or in fall before the ground freezes, depending on your climate.

Pyrus pyrifolia is the wild ancestor of the Asian, nashi or 'apple pear' — grown and selected for centuries across China, Japan and Korea into today's many nashi cultivars. Its fruit is what most distinguishes it in the kitchen: crisp, juicy and apple-textured rather than soft and buttery like a European pear.

Hardiness

Zone 5–9

Habit

Tree

Edible part

Fruit

Ripens

Summer–autumn

Mature size

Tree 7–15 m on seedling roots; on quince 3–4 m

Light

Full sun

Soil pH

6.0–7.0 (near-neutral)

Environment

Temperate

Native range

Native to warm, temperate regions of China at elevations of roughly 100–1,400 m, and naturalized for centuries in low mountains and villages across central and southern Japan; its range also touches Korea and northern Indochina (Laos, Vietnam) — this is the wild species behind the cultivated Asian/nashi pears.

Status

Cultivated

Years to fruit

2–4 yrs

Growth speed

Fast-growing for a fruit tree, capable of reaching around 10–12 m tall if left unpruned, though orchard and garden trees are kept far smaller through pruning and rootstock choice.

Spacing

600 cm (236 in) apart — about 36 m² (388 sq ft) per plant

Leaf shape

Ovate to oblong-ovate leaves, 7–15 cm long and 4–6 cm wide, rounded at the base and tapering to an acuminate tip, with sharply bristle-toothed (setose-serrate) margins; young leaves are lightly downy, becoming smooth and somewhat leathery with age.

Root system

Forms a heart-shaped root system, branching from the root crown into several stout primary roots that spread downward and outward rather than a single dominant taproot.

Fruit description

Round to slightly flattened fruit, roughly 4–8 cm across depending on cultivar, with thin brownish-yellow to green, often russeted skin dotted with small pale lenticels. The flesh stays crisp, grainy and very juicy even when fully ripe, with a mild, sweet, slightly musky flavor — unlike a European pear, it is eaten hard-ripe rather than softened.

Propagation

Named nashi cultivars are propagated almost exclusively by grafting or budding onto pear seedling rootstock — or occasionally quince, for a smaller tree — since seed-grown trees do not come true to type. Seed propagation is used mainly to raise rootstock, and requires 8–10 weeks of cold stratification at about 1°C before spring sowing.

Pollination

Most Asian pear cultivars bloom about a week or more before European pears, so bloom timing and pollen compatibility rarely line up well enough for a European pear to serve as a reliable pollinator — Asian pears generally need another Asian pear variety nearby. The one common exception is late-blooming Asian cultivars, whose bloom can overlap enough with early European types such as 'Bartlett' to allow successful cross-pollination.

Pollinator partners

European pear, Ussurian pear

The edible parts listed above are a starting point, not a field guide. Identify a plant with certainty — ideally against a local authority — before eating any part of it, and read the full disclaimer. Spotted something wrong? Report it.