Bloomipedia
Japanese snowbell (Styrax japonicus)
Photo: Ghost via iNaturalist · CC BY 4.0 · resized

Flowering tree

Japanese snowbell

Styrax japonicus

Japanese snowbell (Styrax japonicus) is a tree in the Styracaceae family, introduced in the lower 48 states.

🌷 Flowering treeIntroduced in the lower 48

Japanese snowbell is a popular flowering tree. It's on our flower lists for 20 states.

3states where USDA records it
20Bloomipedia state lists include it
126U.S. sightings*

*iNaturalist research-grade observations, as of October 23, 2026. Our state lists also include states where people grow it in gardens, so they can outnumber USDA's wild-plant records. Planted garden trees are mostly excluded from research grade.

On our lists for: Arkansas, California, Connecticut, Delaware, Georgia, Kentucky, Maryland, Massachusetts, Michigan, Missouri, New Jersey, New York, North Carolina, Ohio, Oregon, Pennsylvania, Rhode Island, Tennessee, Virginia, Washington

Quick look

Styrax japonicus , also known as the Japanese snowbell, is a species of flowering plant in the family Styracaceae, native to Korea, Japan, and Southern China. Growing to 12 m (39 ft) tall by 8 m (26 ft) broad, it is a graceful, spreading deciduous tree with oval, upward-facing leaves which occasionally turn yellow or orange before falling in autumn.

  • It belongs to the Styracaceae family. iNaturalist
  • USDA PLANTS describes it as a shrub / a tree with a perennial life cycle. USDA PLANTS
  • USDA PLANTS lists it as introduced in the lower 48 states and records it in 3 states. USDA PLANTS
  • iNaturalist has 45 research-grade sightings of it in New York, ranking #133 among the 193 flowers on our New York list. iNaturalist
  • iNaturalist has 42 research-grade sightings of it in Pennsylvania, ranking #135 among the 190 flowers on our Pennsylvania list. iNaturalist
  • iNaturalist has 10 research-grade sightings of it in Virginia, ranking #140 among the 189 flowers on our Virginia list. iNaturalist

When does it bloom?

Flowering records by month across the U.S. (iNaturalist research-grade observations marked “Flowering”) (17 records)
Bloom time in the 20 states whose Bloomipedia list includes it
StateTypePeak bloomSightings*
New York🌷 Gardenfew records (4)45
Pennsylvania🌷 Gardenfew records (12)42
Virginia🌷 Gardenfew records (1)10
Georgia🌷 Gardenno flowering records5
New Jersey🌷 Gardenno flowering records4
Connecticut🌷 Gardenno flowering records3
Maryland🌷 Gardenno flowering records3
Washington🌷 Gardenno flowering records3
Delaware🌷 Gardenno flowering records2
North Carolina🌷 Gardenno flowering records2
Massachusetts🌷 Gardenno flowering records1
Rhode Island🌷 Gardenno flowering records1
Arkansas🌷 Gardenno flowering records0
California🌷 Gardenno flowering records0
Kentucky🌷 Gardenno flowering records0
Michigan🌷 Gardenno flowering records0
Missouri🌷 Gardenno flowering records0
Ohio🌷 Gardenno flowering records0
Oregon🌷 Gardenno flowering records0
Tennessee🌷 Gardenno flowering records0

Conservation status

Federal (U.S. ESA)
Not listed No U.S. Endangered Species Act listing in the USFWS ECOS database. USFWS ECOS
NatureServe global
GNR Not yet ranked worldwide. NatureServe
State rare plant lists
Not listed Not on the official rare plant list in 18 of our 20 states.
See each state
New York
Not listed Not on New York protected native plants (6 NYCRR § 193.3). NatureServe has no New York rank for it. 6 NYCRR § 193.3
Pennsylvania
Not listed Not on Pennsylvania classified native plants (17 Pa. Code Ch. 45, Subchapter B, as amended 2023). NatureServe has no Pennsylvania rank for it. 17 Pa. Code Ch. 45
Virginia
Not listed Not on Virginia endangered and threatened plant and insect species (2VAC5-320-10). NatureServe has no Virginia rank for it. 2VAC5-320-10
Georgia
Not listed Not on Georgia protected plants (Ga. Comp. R. & Regs. 391-4-10-.09; a 2026 update is proposed). NatureServe has no Georgia rank for it. Ga. R. 391-4-10-.09
New Jersey
Not listed Not on New Jersey Endangered Plant Species List (N.J.A.C. 7:5C-5.1). NatureServe has no New Jersey rank for it. N.J.A.C. 7:5C-5.1
Connecticut
Not listed Not on Connecticut Endangered, Threatened and Special Concern Plants (RCSA 26-306; 2015 list). NatureServe has no Connecticut rank for it. CT E/T/SC list
Maryland
Not listed Not on Maryland threatened and endangered plants (COMAR 08.03.08.05, .06 and .08). NatureServe has no Maryland rank for it. COMAR 08.03.08
Delaware
Not listed Not on Rare and Uncommon Plants of Delaware (DNREC, 2024; informational, Delaware has no state plant-protection list). NatureServe: SNA, not applicable (usually because it isn't native there) in Delaware. DE rare plants 2024
North Carolina
Not listed Not on North Carolina Protected Plant Species List (02 NCAC 48F .0301). NatureServe has no North Carolina rank for it. 02 NCAC 48F .0301
Massachusetts
Not listed Not on Massachusetts Endangered Species Act list (321 CMR 10.90). NatureServe has no Massachusetts rank for it. MESA list
Rhode Island
Not listed Not on Rhode Island Rare Plants 2016 (RI Natural History Survey, from the RI Wildlife Action Plan; informational, Rhode Island has no state plant-protection listing law). NatureServe has no Rhode Island rank for it. RI rare plants 2016
California
Not listed Not on California state-listed endangered, threatened and rare plants (14 CCR § 670.2), per CDFW's CNDDB list (July 2026). NatureServe has no California rank for it. CNDDB listed plants (July 2026)
Kentucky
Not listed Not on Kentucky endangered and threatened plant lists (400 KAR 3:040, eff. 2026). NatureServe has no Kentucky rank for it. 400 KAR 3:040
Michigan
Not listed Not on Michigan endangered and threatened plants (Mich. Admin. Code R 299.1028, eff. March 20, 2023). NatureServe has no Michigan rank for it. R 299.1028
Missouri
Not listed Not on Missouri Wildlife Code endangered species (3 CSR 10-4.111), plants. NatureServe has no Missouri rank for it. 3 CSR 10-4.111
Ohio
Not listed Not on Ohio endangered and threatened plants (Ohio Adm. Code 1501:18-1-03, eff. Dec. 26, 2024). NatureServe has no Ohio rank for it. OAC 1501:18-1-03
Oregon
Not listed Not on Oregon endangered and threatened plants (OAR 603-073-0070). NatureServe has no Oregon rank for it. OAR 603-073-0070
Tennessee
Not listed Not on Tennessee endangered plants (Tenn. Comp. R. & Regs. 0400-06-02-.04, Rare Plant Protection and Conservation Act). NatureServe has no Tennessee rank for it. TN rule 0400-06-02-.04
Washington
No list Washington has no state law listing endangered or threatened plants (the Washington Natural Heritage Program's rare plant list isn't regulatory), so we show NatureServe's Washington ranks instead. NatureServe has no Washington rank for it.
Arkansas
No list Arkansas has no state law listing endangered or threatened plants, so we show NatureServe's Arkansas ranks instead. NatureServe has no Arkansas rank for it.
Rare elsewhere
No other U.S. state ranks it S1, S2, SH or SX.

Checked October 23, 2026. Rankings and lists can change, so follow the links for the latest.

Can you eat it?

For peopleNot well documented

None of the sources we checked (NC State Extension (no edibility or poison notes on its page), USDA PLANTS) say whether it's edible or poisonous for people. NC State Extension

For petsNot well documented

It isn't on the ASPCA plant list, and NC State Extension doesn't flag it for pets.

🌿 Never eat a wild plant unless you're certain of its ID; this isn't medical advice. Worried about a person? Call Poison Control at 1-800-222-1222. Worried about a pet? Call your vet.

Where does it grow?

USDA PLANTS records Japanese snowbell in 3 states.

recorded by USDA PLANTS on our state lists not recorded

See the full list of states

Connecticut, New York, Pennsylvania.

New York counties with USDA records: Nassau, Suffolk.

Names, range and relatives

County records: USDA PLANTS lists it in 2 counties across 1 states; the most are in New York (2).

More from the Styracaceae family (1 on Bloomipedia; most observed first): Carolina silverbell.

More New York flowers

Sources