Tree · Rosaceae
Yoshino Cherry
Prunus × yedoensis
Plant it for the clouds of white-to-pink spring blossom, and a Yoshino cherry turns a whole yard into an event for two weeks each year.
Full sun
Every 5–10 days
USDA 5–8
30–40 ft · 9.1–12.2 m
Overview
The Yoshino cherry is the tree behind the famous spring displays, including the ones that ring the Tidal Basin in Washington. It opens fragrant white to pale-pink flowers in early spring, often before the leaves unfurl, and for a couple of weeks the whole canopy looks like it's been dipped in snow. The blooms give way to small black drupes that birds clean up through summer.
It's a hybrid cherry, Prunus x yedoensis, in the rose family, and it grows fast into a broad, rounded tree of 30 to 40 feet. That speed comes at a cost: these are short-lived trees, usually good for about 15 to 20 years before borers and canker catch up with them. Plenty of gardeners decide the spring show is worth it anyway.
Give it a sunny, open spot with moist, well-drained soil and room to spread, and a Yoshino mostly takes care of itself. It earns its keep in one short, spectacular burst, then settles into a clean green tree with decent gold fall color.
Care
The short version: full sun, deep moist soil that drains well, and steady water through dry spells. Prune only right after it flowers, give it plenty of room, and keep mowers away from the thin bark.
Light
Plant a Yoshino in full sun for the heaviest, most even bloom. It will take partial shade, but the flowering thins out and the tree leans toward whatever light it can find.
Water
Keep the soil consistently moist, watering roughly every 5 to 10 days and more often in a heat wave. The tree handles heat and humidity well but has poor drought tolerance, so don't let it dry out during a long dry spell.
Soil
Give it average, medium-moisture, well-drained loam, ideally a touch acidic to neutral at a pH of 6.0 to 7.0. It adapts to a wide range of soils as long as the drainage is good, since soggy roots invite rot.
Temperature
This is a hardy tree, comfortable across USDA zones 5 to 8 and the swing from -20°F to 100°F (-29°C to 38°C). The early flowers are the weak point, since a late frost can brown an open bloom overnight.
Humidity
Ordinary outdoor humidity suits it fine, so there's nothing to measure or adjust. The tree shrugs off muggy summers, though damp, crowded canopies make leaf spot and canker easier to catch.
Feeding
Feed sparingly. A balanced slow-release tree fertilizer in early spring helps only if growth is poor, and a mature tree in decent soil usually needs nothing at all.
Pruning
Prune crossing or rubbing branches right after flowering, since cutting later trims off next spring's buds. Remove dead or diseased wood any time, cutting 4 to 8 inches below black knot swellings, and scrape off tent caterpillar egg masses in winter.
Repotting
This is a landscape tree, not a container plant, so there's no repotting to do. If a young tree sits too long in its nursery pot, watch for circling or girdling roots and tease them loose before planting.
Size & spacing
A Yoshino grows fast to about 30 to 40 feet (9 to 12 meters) tall with a spread to match, so give it wide, open ground. Plant it well clear of buildings, walks, and other trees to let the rounded crown fill out.
When to plant
Set a Yoshino out while it's dormant, in early spring or fall, so the roots settle before the tree has to carry leaves. The reward lands in early spring, when fragrant white-to-pink flowers cover the bare branches in March or April, with small black drupes following in summer.
Northern hemisphere
Southern hemisphere
Typical months for a temperate climate: start earlier in warm zones, later where spring frosts linger.
- Plant: Plant balled-and-burlapped or container trees in early spring or fall while dormant.
- Harvest: Fragrant white to pale-pink flowers in early spring (March-April) before or with emerging leaves; small black drupes follow in summer.
Hardiness
USDA hardiness zones: 5–8
Temperature: down to -29°C
Troubleshooting
Most Yoshino trouble shows up on the bark, the twigs, or the leaves, and the worst of it works slowly out of sight. Learn to read the early signs and you can cut out a problem before it spreads through the tree. Match what you see below, then act while it still helps.
Sawdust, oozing gum, and holes low on the trunk
Borers are tunneling into the trunk and limbs, leaving frass and gummy ooze near the soil line as branches die back. There's no quick spray; the best defense is a vigorous tree that can wall the grubs off on its own. Keep mowers and string trimmers away from the bark, mulch under the canopy, and water through dry spells, but accept that these cherries are naturally short-lived at about 15 to 20 years.
Fix:
- Keep trees vigorous so they can resist and wall off borers
- Protect bark from mowers and string trimmers with mulch
- Follow extension timing for borer management on confirmed infestations
Sunken, oozing cankers on the branches with dieback
These weeping, gummy sores point to brown rot and canker fungi, which also rot the small fruit and blight the twigs. Cut the infected wood out well below each canker and wipe your tools with disinfectant between cuts. Rake up mummified fruit and fallen debris so the spores have nowhere to overwinter.
Fix:
- Prune out and destroy infected wood well below the canker, disinfecting tools between cuts
- Remove mummified fruit and fallen debris to reduce inoculum
- Improve air circulation and avoid wetting foliage when watering
Hard black knots swelling around twigs and branches
This is black knot, a fungus of cherries and plums that throws up rough, coal-black swellings, easiest to spot in winter once the leaves are gone. Prune the knots out in late winter before growth starts, cutting at least 4 to 8 inches below each one, then burn or bury what you remove. Pull out any wild cherry or plum nearby, since they feed the disease right back into your tree.
Fix:
- Prune out knots in late winter before growth starts, cutting at least 4-8 inches below each knot
- Destroy pruned material by burning or burying
- Disinfect pruning tools between cuts
Silk tents in the branch forks and chewed leaves
Eastern tent caterpillars spin those webby nests in spring, while Japanese beetles skeletonize the leaves in summer and aphids or scale leave behind sticky honeydew and black sooty mold. Tear out the tents and egg masses by hand and drop the beetles into soapy water. A healthy, well-watered tree shrugs off this damage, since it's mostly cosmetic.
Fix:
- Remove and destroy tent caterpillar tents and egg masses by hand
- Hand-pick Japanese beetles into soapy water
- Wash off aphids or treat heavy scale/aphid infestations per extension guidance
Toxicity
The flowers are the only part to enjoy from a distance, because the rest of this tree is genuinely dangerous. The leaves, twigs, bark, and seed pits hold cyanogenic glycosides that release cyanide, and the risk jumps once leaves wilt after pruning, a storm, or a frost. Keep pets, horses, and livestock well away from clippings and fallen debris, and don't let anyone eat the bitter fruit or its pits.
Toxic to
Cats · Dogs · Horses · Rabbits · Livestock · Birds · People
Cats Toxic
A cat that chews the wilted leaves, twigs, or seed pits can turn up with brick-red gums, wide pupils, and labored, panting breaths. Poisoning is uncommon but the cyanide works fast, so treat any breathing trouble as an emergency.
Dogs Toxic
Dogs that gnaw fallen twigs or crack the pits face the same cyanide risk. Watch for heavy drooling, bright-red gums, dilated pupils, and sudden distress, and get to a vet right away.
Horses Severe
Horses are at real danger here. Wilted leaves from a pruned or storm-downed branch can be rapidly fatal, bringing on bright-red membranes, fast breathing, weakness, and collapse within minutes.
Rabbits Toxic
The foliage, twigs, and pits hold the same cyanide-releasing compounds, so none of it belongs near a rabbit. Keep clippings and fallen debris out of reach entirely.
Livestock Severe
Cattle, sheep, and goats are highly vulnerable to wilted cherry leaves, which can kill within 15 to 20 minutes. Expect slobbering, rapid breathing, a weak pulse, bright-red membranes, and convulsions, so never toss prunings into a pasture.
Birds Caution
Wild birds eat the ripe black drupes and pass the hard pits whole without harm, which is how the tree spreads its seed. The pits and foliage themselves stay off-limits, since a cracked seed releases cyanide.
People Caution
This is an ornamental tree, not a fruit crop. The bitter little drupes aren't worth eating and the leaves, twigs, and seed pits hold cyanogenic compounds, so keep curious children from chewing any part of it.
Do not leave pruned or storm-downed branches where livestock or horses can browse the wilting leaves; keep fallen twigs and fruit pits away from pets.
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
Yoshino comes in a few named forms, and a couple of trees often sold alongside it are really close cousins rather than true Yoshinos.
'Akebono' (Daybreak)
This is the pinker face of the Yoshino, opening soft pink and fading toward white instead of the near-white of the straight species.
'Snow Fountains' (weeping Higan cherry, Prunus 'Snofozam')
Despite the company it keeps, this is a weeping Higan-type cherry rather than a true Yoshino, draping its branches into a fountain of white spring flowers.
Kwanzan (Prunus 'Kanzan')
A related Japanese flowering cherry that trades the single white-to-pink blooms of Yoshino for showy double pink flowers packed with 20 to 30 petals.
How to propagate
Because Yoshino is a hybrid that won't grow true from seed, every tree is a clone, and that puts propagation mostly in the hands of nurseries.
GraftingDemanding
Late winter to early spring (bench grafting) or summer (budding) · 1-2 seasons to a sellable grafted tree
Yoshino is a hybrid, so seed won't come true and growers clone it instead. The standard route is grafting or budding onto cherry rootstock, done by bench grafting in late winter to early spring or by budding in summer, and it takes 1 to 2 seasons to build a sellable tree. This is demanding work better left to a nursery.
Stem cuttingsDemanding
Early summer (softwood) · Several weeks to root, then 1-2 seasons to establish
You can also try softwood cuttings taken in early summer, rooted under mist with a rooting hormone. They need several weeks to root and another 1 to 2 seasons to establish, and they're far less reliable than grafting, so few growers count on them.
Myths
The little black cherries are a tasty fruit you can eat.
Birds love the small black drupes, but they're bitter and essentially inedible to people. The seeds inside carry the same cyanogenic compounds as the rest of the tree, so this is an ornamental, not a fruit crop.
Fresh cherry leaves are just as dangerous as any other part of the tree.
Green, undamaged leaves on the tree are actually low risk. The real danger comes from wilted or damaged leaves, the kind left by a storm-downed limb, a pruning cut, or a hard frost, because that's when the cyanide spikes and horses and livestock get poisoned.