Sakura Trees: Yoshino and Kwanzan Peak About 15 Days Apart, So Plant Both for a Three-Week Show, With the Root Flare Showing

Yoshino cherries reach peak bloom first, and Kwanzan follows about 15 days later. That is the historical average in the National Park Service’s Washington, D.C. peak-bloom records, and in 64 of the 84 years tabulated the gap fell between 10 and 20 days. A cherry flower typically lasts only 7 to 10 days, so planting one of each stretches a single week of blossom into roughly three. What happens below ground matters just as much: in a Clemson University trial, half of the Yoshino cherries planted 6 or 12 inches too deep were dead two years later, while every tree planted with its root flare at soil level was alive.

This guide sorts out which trees people mean by “sakura” in a US yard, shows the bloom order from earliest to latest, compares Yoshino and Kwanzan side by side, and walks through the planting depth and the problems that shorten a flowering cherry’s life. If the brevity is what draws you to these trees, the cultural side is in our piece on cherry blossoms and mono no aware.

What is a “sakura tree” in a US yard?

The ornamental cherries most US gardeners mean by “sakura” fall into five groups: Yoshino (including its pink-tinged selection ‘Akebono’), Kwanzan, weeping Higan, Okame, and Sargent cherry. You buy all of them for the flowers, and they differ mainly in when they open, how many petals they carry, and how cold a winter they tolerate.

Yoshino is the tree behind the famous displays at the Tidal Basin and across Japan, and its biology explains why those displays are so short. A 2022 paper in Frontiers in Plant Science notes that the Japanese ‘Somei-Yoshino’ is heterozygous and self-incompatible, so it is propagated by grafting, and that “because of its clonal nature” trees planted in one location bloom at the same time. In Japan, every Somei-Yoshino is a copy of the same plant, so every tree runs the same bloom calendar and a whole street peaks together and fades together. The same grafting habit shows up later in this article as a reason these trees do not live long.

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Kwanzan is the other half of the Washington, D.C. pairing, and Clemson Extension calls it the most common Japanese flowering cherry cultivar. Its flowers are double, with 20 to 30 petals about 2.5 inches across according to NC State Extension, and noticeably darker pink than Yoshino’s. Virginia Tech lists the cultivar as sterile, so it typically sets no fruit.

Which flowering cherry opens first? The bloom order

The order is consistent from garden to garden: Okame first, then weeping Higan and Yoshino (with its Akebono selection), then Kwanzan last. The calendar dates shift with your climate, so treat the order as the reliable part and the dates as local examples.

The practical takeaway: gardens spread their cherry display over two months or more by mixing early, middle and late cultivars, and a home garden can copy that with just two or three trees.

Weather decides how much of that sequence you actually see. The National Park Service defines peak bloom as the day 70 percent of Yoshino blossoms are open, and notes that cool, calm weather extends the display, a rainy, windy day can end it abruptly, and a late frost can stop the trees from blooming at all. University of Maryland Extension puts the typical life of a cherry flower at 7 to 10 days, up to 14 days after peak in cool, calm, dry spells, and 3 to 5 days shorter in hot, rainy or stormy weather. Late frost is a risk for any early spring bloomer, and the same problem shows up with magnolias that survive a late frost.

A caution on the gap itself. With flowers lasting 7 to 10 days and peaks about 15 days apart, Yoshino and Kwanzan give you two displays with a quiet week between them, not one continuous show. A mid-season cherry such as Amanogawa should sit in that gap, but we found no source that measures its offset from Yoshino directly, so check your local nursery or arboretum before counting on it.

Yoshino or Kwanzan: which should you plant?

Choose Yoshino for an airy, pale canopy that opens earliest and Kwanzan for a denser, deeper pink display two weeks later; if you have room for only one, pick the bloom window you most want to see. Neither is low-maintenance, and both are short-lived.

NC State rates Yoshino’s maintenance as high, and Utah State’s tree guide adds two siting rules: give it full sun, because shade reduces flowering, and keep it away from streets and parking lots, because it is sensitive to drought. Clemson asks for moist, fast-draining, well-aerated soil for all of these cherries.

Which flowering cherry fits your zone?

Yoshino and Kwanzan suit zones 5 through 8, Kwanzan extends to zone 9, and zone 4 gardeners should look at Sargent cherry instead. Oregon State’s landscape plant database lists Sargent cherry as hardy to zone 4 (and zone 3b), calling it one of the hardiest of the Oriental cherries, with single pink flowers and a 20 to 30 foot height. Brooklyn Botanic Garden reports that most of its cherries grow across zones 4 to 9 depending on the cultivar, so always check the specific cultivar tag rather than the species.

• Zone 4: Sargent cherry. Yoshino is outside its listed range.
• Zones 5 to 6: Yoshino and Kwanzan both qualify. Plan for late frost, which the National Park Service says can stop the trees blooming at all. Our flowering tree problems guide covers frost damage.
• Zones 7 to 8: The full sequence is realistic. Georgia columnist Walter Reeves describes Okame in early February, Yoshino in March and Kwanzan in April, and Clemson singles out Okame for blooming well even in the Coastal Plain.
• Zone 9: Kwanzan is the only one of the two with a listed zone 9 rating.

Lifespan belongs in the choice too. Clemson gives 15 to 20 years as the average life of Japanese flowering cherries and says Higan cherries are longer-lived than most. A University of Georgia Extension horticulturist describes these cherries as a temporary specimen that will likely start to decline or die around 20 years old, and blames grafting: rootstock incompatibility, weak graft attachments and a weaker cloned top. If longevity matters more than a famous name, Higan is the better bet; if you want the most spectacular 15 years, plant Yoshino and plan its replacement.

Which flowering cherry fits a small yard?

For a small yard, skip a standard Yoshino and choose a narrow or compact selection: ‘Amanogawa’ is a narrow column about 20 feet tall, and ‘Akebono’ stays near 25 feet tall and wide, according to Clemson Extension. A standard Yoshino is a much bigger commitment, 30 to 40 feet tall and 20 to 50 feet wide in NC State’s description, and Kwanzan reaches 25 to 36 feet tall and 25 to 30 feet wide.

Oregon State lists the upright Sargent selection ‘Rancho’ at 25 feet tall by only 10 feet wide, which is the one to consider in a side yard at the cold edge of cherry country. Measure the width you can give the canopy, not just the height, and remember the root zone is wider still. Our guide to small flowering trees for front yards and patios compares more compact options.

How deep should you plant a flowering cherry?

Plant it so the root flare, the point where the trunk widens into the roots, sits level with or slightly above the surrounding soil. Iowa State Extension puts it as “level with or slightly higher than the surrounding grade,” and Colorado State Forest Service recommends 1 to 2 inches above ground level. This is the mistake with hard numbers behind it, and Yoshino is the tree the numbers come from.

Wells and colleagues at Clemson’s Roland Schoenike Arboretum planted red maple and Yoshino cherry with the root flare at grade, 6 inches below grade, or 12 inches below grade, ten trees per depth per species. Two years after transplanting, all of the cherries planted at grade had survived, while 50 percent of those planted 6 or 12 inches deep had died. The red maples did not die in greater numbers, but by year three girdling roots circled 14 percent of the trunk at grade, 48 percent at 6 inches and 71 percent at 12 inches. Iowa State’s guidance explains the logic: planting too deep can kill a tree within months or leave it with chronic problems, most notably stem-girdling roots.

Two limits on that evidence. It is a single-site trial with ten trees per depth, so read the 50 percent as a strong signal rather than a precise rate. The paper also reports no girdling-root difference among the cherries, which means something other than girdling roots was killing them, and we found no source that says what. And it tested Yoshino, not Kwanzan, so applying it to Kwanzan is a reasonable inference from shared biology, not a measured result. Our redbud planting-depth guide covers the same flare mechanism in another flowering tree.

A common cause of a buried flare is the nursery, not the planter. Colorado State notes that container trees often arrive with too much soil over the root system, left over from “potting up” the seedling as it grew. Here is how to get the depth right:

1. Find the flare first. Scrape soil off the top of the root ball until the trunk visibly widens. That, not the top of the soil in the pot, is your reference level.
2. Dig to the height of the root mass, no deeper. Measure from the bottom of the root ball to the flare. Iowa State warns that a hole dug deeper lets the tree settle below grade.
3. Dig wide, not deep. Colorado State recommends a hole at least three times the width of the root ball.
4. Set the flare 1 to 2 inches above grade, then backfill and water.
5. Mulch 3 to 4 inches deep, pulled back from the trunk and flare. Mulch piled against the bark recreates the buried-flare problem. Clemson adds that a mulched circle also keeps mowers and string trimmers away from the trunk.
6. Remove stakes after one growing season. Colorado State warns that leaving them on too long can damage the tree.

New to tree planting? Our beginner’s guide to planting flowering trees covers the basics, and if you are choosing a grafted weeping form, see the weeping cherry planting guide for where the graft line should sit.

What goes wrong with flowering cherries?

Most failures fall into five groups: bloom that browns early, flowers that never come, wounds at the base, leaf damage, and a young tree that dies despite watering. The table matches each symptom to its likely cause.

When not to worry: a single wet spring that browns some blossoms is not proof the tree is failing. Brown rot spreads in wet weather in May and June, so watch for twig dieback in the weeks after bloom rather than reacting to the blossoms alone. Prevention beats cure here: the right depth, full sun, a mulch ring and a drained site avoid most of the rows above.

A year with a flowering cherry

Frequently asked questions

When do Kwanzan cherries bloom compared with Yoshino?

Kwanzan typically peaks about 15 days after Yoshino. In National Park Service records for Washington, D.C., the gap was between 10 and 20 days in 64 of 84 years, and as short as 4 days or as long as a month.

How long do cherry blossoms last?

University of Maryland Extension puts the typical life of a cherry flower at 7 to 10 days. Cool, calm, dry weather can extend it to about 14 days after peak, and hot, rainy or windy weather can cut 3 to 5 days.

How long do Yoshino and Kwanzan cherry trees live?

Clemson Extension gives an average of 15 to 20 years for Japanese flowering cherries, including Yoshino. University of Georgia Extension suggests treating them as a temporary specimen that may begin to decline around 20 years old. Higan cherries are longer-lived than most.

What zone do Yoshino cherry trees grow in?

Utah State Extension and NC State list Yoshino for USDA zones 5 to 8. Kwanzan is listed for zones 5 through 9, and Sargent cherry is hardy to zone 4.

How deep should you plant a flowering cherry tree?

Plant it with the root flare level with or 1 to 2 inches above the surrounding soil. In a Clemson trial, 50 percent of Yoshino cherries planted 6 or 12 inches deep were dead after two years, while all planted at grade survived.

Is there a flowering cherry for a cold climate?

Sargent cherry is the best-documented choice: Oregon State lists it as hardy to zone 4 and one of the hardiest of the Oriental cherries. Yoshino’s listed range stops at zone 5.

For more trees that follow a spring cherry, see our guide to flowering trees that deliver color from early spring through late summer.

Sources

1. National Park Service. Cherry Blossom Bloom Watch. National Mall and Memorial Parks
2. Cherry Blossom Watch. Kwanzan Cherry Blossoms: peak bloom dates compiled from National Park Service records through 2011
3. University of Maryland Extension. Short life of cherry blossoms’ beauty, 2026
4. Cherry Blossom Watch. Cherry blossom bloom stages and progression
5. Wells C, Townsend K, Caldwell J, Ham D, Smiley ET, Sherwood M. Effects of Planting Depth on Landscape Tree Survival and Girdling Root Formation. Arboriculture & Urban Forestry 32(6):305-311, 2006
6. Iowa State University Extension and Outreach. What is the proper planting depth for a tree? Yard and Garden, updated 2026
7. Colorado State Forest Service. How to plant a tree. Colorado State University
8. Clemson Cooperative Extension. Ornamental Cherry, Plum, Apricot, Almond. Home and Garden Information Center
9. Pugliese P. Short-lived trees. University of Georgia Cooperative Extension, CAES Field Report, 2021
10. NC State Extension. Prunus x yedoensis (Yoshino cherry). NC State Extension Plant Toolbox
11. NC State Extension. Prunus ‘Kanzan’ (Kwanzan cherry). NC State Extension Plant Toolbox
12. Utah State University Extension. Cherry, Yoshino. Utah Tree Browser
13. University of Maryland Extension. Brown rot on ornamental cherry trees
14. Shirasawa K, Esumi T, Itai A, Isobe S. Frontiers in Plant Science, 2022 (Somei-Yoshino flowering-time gene expression study)
15. New York Botanical Garden. Flowering Cherries
16. Brooklyn Botanic Garden. Pretty in Pink
17. Duke Gardens. Daybreak Yoshino cherry (Akebono)
18. Reeves W. Flowering times of cherry trees. Walter Reeves, The Georgia Gardener
19. Oregon State University. Prunus sargentii. Landscape Plants
20. Virginia Tech Dendrology. Prunus serrulata ‘Kwanzan’