Tree · Rosaceae
Asian Pear
Pyrus pyrifolia
Hand it full sun, a pollinator partner, and an open frame, and the Asian pear gives back crisp, juicy fruit for decades.
Full sun
Every 7–14 days
USDA 5–8
20–40 ft · 6.1–12.2 m
Overview
The Asian pear is a tough fruit tree in the rose family, grown all over East Asia long before it ever showed up in Western orchards. It goes by plenty of names, from nashi to apple pear, and that last one isn't far off. The fruit is round and stays crisp and juicy instead of going soft like a European pear, so you eat it firm, picked straight off the branch.
This is a tree that's in it for the long haul, not a fast crop. Plant a young one and it digs in quickly, then keeps bearing for decades once it's settled. It shrugs off serious cold, down to roughly -20°F (-29°C), and handles summer heat just as well, which makes it a great fit for a lot of the temperate world.
The one favor it asks is a buddy. Almost every variety needs a second compatible cultivar blooming at the same time to set a real crop, so count on two trees right from the start. Give them sun, some elbow room, and an open shape, and they pretty much take care of themselves.
Care
The short version: full sun, deep well-drained soil, and a second compatible variety close by for pollination. Soak the tree deeply while it's getting established and while the fruit is swelling, prune it to an open multi-trunk frame in late winter, and thin the young fruit so the branches don't snap.
Light
Asian pears love full sun, which gives you the best fruit and the fewest disease troubles. They'll put up with a touch of afternoon shade, but park one in real shade and it grows weak and barely crops.
Water
Soak the tree deeply and regularly while it's getting established and all through the stretch when the fruit is swelling, as long as the soil drains freely. Then ease off as the pears mature, and again once the tree settles into winter dormancy. Deep, less frequent soakings really do beat a quick daily sprinkle.
Soil
Plant it in deep, well-drained ground, whether that's loam, sand, or even clay, just so water actually moves through it. A slightly acidic pH of 5.9 to 6.5 suits it nicely, and honestly good drainage matters more than hitting the exact number.
Temperature
This is one tough, cold-hardy tree that handles winters down to about -20°F (-29°C) and summer heat up to roughly 95°F (35°C). The real danger isn't deep cold, though; it's a late spring frost catching the open blossom.
Humidity
Plain outdoor air anywhere in the 40% to 70% range is fine, so there's really no number to fuss over. What you do want to watch is warm, wet weather at bloom, since that's when fire blight moves fastest.
Feeding
Feed in spring with a balanced 10-10-10 fertilizer, split across a couple of doses. Match the amount to the tree's age, roughly a third to a half cup per year up to about 8 cups, and don't overdo it, because heavy nitrogen feeds fire blight.
Pruning
Prune in late winter while the tree's dormant, taking off around 10 percent of the terminal spurs each year to keep the fruit good and sized. Train it to several trunks in an open form instead of one central leader, so a single fire blight strike can't claim the whole tree. Then hand-thin the young fruit 14 to 40 days after the petals drop, down to one fruitlet per spur or about 6 inches apart, or the load will break the limbs.
Repotting
not applicable - grown outdoors in the ground
Size & spacing
This one gets big, climbing 20 to 40 feet (6 to 12 m) tall and nearly as wide. Give it plenty of open ground so air can move through the canopy and the roots have somewhere to spread.
When to plant
Asian pears follow the calendar pretty closely. Get dormant trees in the ground in late winter to early spring, picking the most frost-free spot you've got so a late freeze doesn't nip the blossom. The flowers open in April, and the fruit ripens right on the tree from about mid July through fall, depending on which variety you've planted.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Plant: Plant dormant bare-root or container trees in late winter to early spring in a site as frost-free as possible to avoid late spring frosts at bloom.
- Harvest: Blooms April to early May; fruit ripens on the tree from about mid July through fall depending on cultivar.
Hardiness
USDA hardiness zones: 5–8
Temperature: down to -29°C
Troubleshooting
Most Asian pear headaches boil down to one disease and a handful of pests. Fire blight is the one to really respect, since it can take out a whole tree, while the bugs mostly cost you some fruit or vigor. Find what matches what you're seeing below, then move on it before it spreads.
Shoots turn black and bend over into a shepherd's crook
What you're seeing is fire blight, a bacterial disease that tears through the tree during warm, wet bloom weather and gets worse if you've fed too much nitrogen. Snip out the blackened shoots well below the dead part, back off the feeding, and shape the tree to several trunks so one strike can't finish it off. Want the best protection? Plant resistant cultivars from the start.
Fix:
- Choose resistant cultivars, avoid heavy nitrogen, prune out blackened shoots well below the infection, and train to multiple trunks so one strike does not kill the tree
Tunnels and crumbly brown trails bored through the fruit
The codling moth drops eggs that hatch into larvae, and those little grubs burrow right into your developing pears. Hang traps so you know when the moths are out flying, then thin or bag the fruit and use labeled controls timed to the season. The trick is catching them early, before the larvae get buried deep inside.
Fix:
- Monitor with traps and use fruit thinning, bagging, or labeled controls during the season
Sticky leaves with a black sooty coating on top
Pear psylla are tiny sap-suckers that leave the leaves slick with honeydew, and before long sooty mold settles in on top of it. Let them build up and they'll wear the tree down. So lean on natural predators, spray dormant oil before growth kicks off in spring, and only reach for labeled controls once the numbers really climb.
Fix:
- Encourage natural predators, apply dormant oil, and use labeled controls when populations build
Orange flecks on the leaves and aphids piling onto new shoots
Rust dots the leaves and fruit with orange-brown spots, and aphids crowd onto the tender new growth to drain it. Rust hops over from nearby junipers, so clear those hosts out wherever you can. As for the aphids, a spray of horticultural oil or insecticidal soap will knock them right back.
Fix:
- Remove nearby juniper hosts for rust where practical and treat aphids with horticultural oil or insecticidal soap
Toxicity
The ripe flesh is a crisp, sweet fruit that's safe to eat, but the rest of the tree isn't so friendly. The seeds, bark, and wilting leaves carry cyanogenic compounds that turn loose cyanide when chewed in any quantity, the same risk you get with other pip fruits. So keep pets and livestock away from the seeds and from any prunings, especially bruised or frost-killed leaves.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds · People
Cats Mild
If a cat gnaws on seeds or wilted prunings, you might spot brick-red gums, wide pupils, and heavy panting. Bigger amounts can really upset them, though the ripe flesh is no trouble at all.
Dogs Mild
Keep an eye out for hard panting, big pupils, and bright red gums if a dog chews on bark, prunings, or a mouthful of seeds. That said, most dogs that grab a slice of ripe pear are just fine.
Horses Toxic
Horses are huge grazers, but they're surprisingly touchy about cyanide, and a heap of wilting prunings tossed over the fence is usually how it happens. Labored breathing, wobbling, and collapse can come on quick, so never hand them the trimmings.
Rabbits Toxic
Keep rabbits clear of the seeds, bark, and any wilted leaves, because their tiny bodies only need a small dose of cyanide to be in trouble. A thin sliver of ripe flesh now and then is the only part that's okay.
Livestock Toxic
Cattle, goats, and sheep can poison themselves on fallen branches or wilted leaves that blow into a pasture. The risk jumps when the foliage is bruised or frost-killed, which is right when the cyanide is at its peak.
Birds Toxic
Pet birds and backyard poultry should never reach the seeds, which pack the same cyanide as the rest of the pip fruits. Stick to seedless bits of the ripe flesh and you're good.
People Caution
The ripe flesh is a crisp, juicy fruit that's great to eat. Just steer clear of chewing or swallowing the seeds, because a big batch of crushed pips lets cyanide loose.
Keep pets from chewing large amounts of seeds, bark, or wilting prunings; the ripe fruit flesh itself is safe.
Helpline numbers
United States
ASPCA Animal Poison Control: (888) 426-4435 (fee applies)
Poison Control: (800) 222-1222
Canada
Poison Centres: 1-844-764-7669
Varieties
Asian pears come in dozens of cultivars, grouped mostly by skin color, when they ripen, and how well they fight off disease. These are the ones you'll run across most, and choosing two that bloom together sorts out your pollination in one move.
Hosui
A standout favorite, packed with large, juicy, low-acid bronze fruit that ripens in mid to late August and pays you back with bigger pears if you thin it carefully.
Shinseiki (New Century)
An early, round, yellow-green pear with sweet, creamy white flesh; it'll crop a bit on its own, but you'll get far more fruit with a second cultivar planted nearby.
Nijisseiki (Twentieth Century)
The most widely grown variety anywhere, loved for its yellow-skinned fruit, but sadly one of the first to come down with fire blight.
Chojuro
One of the earliest Japanese cultivars you can pick, dropping its large, brown, russeted fruit around mid July.
How to propagate
There are two ways to get an Asian pear going, but only one hands you the fruit you actually want. Grafting copies a named variety exactly, while seed is a roll of the dice that's best left to breeders and rootstock growers.
GraftingModerate
This is how growers keep named cultivars true to type. You graft a bud or scion of the variety you want onto a pear or Asian pear rootstock, and the new tree ends up bearing the exact same fruit as its parent. It does take a steady hand, but it's the only dependable way to copy a named pear.
SeedModerate
Seeds come up easily enough, but the seedlings won't match the parent and take years before they fruit. So seed is mostly used to grow rootstock or to breed new varieties, not to raise a tree you can actually count on.
Myths
You have to pick Asian pears hard and let them ripen off the tree, just like European pears.
Sure, European pears need that after-ripening, but Asian pears don't. They're at their best left to ripen right on the tree, where they get sweet and juicy. You eat them crisp with an apple-like bite, never soft and buttery.
One Asian pear tree on its own will give you a full crop.
Nearly every cultivar can't pollinate itself, so a lone tree gives you little to no fruit. Plant a second compatible cultivar that blooms at the same time and let the bees ferry pollen back and forth. That's the only way you'll get a real harvest.