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Home / Browse / Euonymus / Hamilton's Spindletree (subsp. sieboldianus)
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Pictured: Euonymus hamiltonianus — the species. This subspecies isn’t separately illustrated.
Celastraceae family

Hamilton's Spindletree (subsp. sieboldianus) Euonymus hamiltonianus subsp. sieboldianus subspecies

Hamilton's Spindletree (subsp. sieboldianus) is an introduced perennial tree, found in the lower 48 states.

More about this plant

Euonymus hamiltonianus, known by the common names Hamilton's spindletree, Himalayan spindle, and Siebold's spindle is a species of flowering plant in the family Celastraceae. It is native to Asia, where it is distributed in Afghanistan, Russia, China, Japan, Korea, India, Nepal, Pakistan, Bhutan, Thailand, and Myanmar. This is one of the most common Euonymus species. It is cultivated in gardens and landscapes in other parts of the world. Wikipedia →

Growing & care

USDA PLANTS · TRY
Conditions
Sources · Conditions
Cold hardiness (derived) — Hardiness
Hardiness
≥ zone 8 derived from its U.S. range
Size & form
Sources · Size & form
USDA PLANTS — Lifespan
Lifespan
Perennial
In the garden
Tree layer (canopy / understory) — Sits in the tree of a layered food forest or polyculture.Open guide →
derived roles
Species characteristics from USDA PLANTS (public domain) + TRY (CC BY) — general guidance, not a guarantee for your exact site. Deer "browsing" is documented palatability, not a deer-proof claim.

Wildlife & pollinators

How pollinator value is scored →
❧ Caterpillar hosts ~11 caterpillar species

Euonymus supports ~11 caterpillar species.

Native butterfly & moth caterpillars are the base of the terrestrial food web — most songbirds rear their young almost entirely on them. As a host for native Lepidoptera this is a moderate genus.

Recorded feeding on Euonymus in North America, including:

Cacoecimorpha pronubana · Carnation Tortix Caloptilia syringella · leaf-blotch miner moth Herpetogramma theseusalis · snout moth Hyalophora cecropia · Cecropia Moth Hyphantria cunea · tiger moth Orgyia leucostigma · White-Marked Tussock Moth
+ 5 more species →
Samia cynthia · Ailanthus Silkmoth Samia walkeri · giant silk moth Yponomeuta euonymella · ermine moth Yponomeuta multipunctella · American Ermine Moth Yponomeuta plumbella · ermine moth
Keystone count (genus-level) from Warren II 2026 (CC0) · Tallamy host-use records. Named species (a documented Nearctic sample, not exhaustive) from NHM HOSTS (CC0).
Species thumbnails re-hosted from iNaturalist — Creative Commons, credited per image (hover for credit). Click any species to see it on iNaturalist. Not exhaustive; many taxa have no openly-licensed photo yet.
Sources for this entry (11) Open & cited
[01] Scientific name & family — USDA PLANTS (DwCA, Zenodo 17903503)
[02] Growth habit & duration — USDA PLANTS (DwCA, Zenodo 17903503)
[03] Native status & distribution — USDA PLANTS (DwCA, Zenodo 17903503)
[04] Common name — USDA PLANTS (via GBIF)
[05] Invasive / introduced status — USDA PLANTS (DwCA, Zenodo 17903503) — native status
[06] Description — Wikipedia (CC BY-SA)
[07] Ecological value — Warren II 2026 (CC0) · Tallamy host-use counts
[08] Cold hardiness (derived) — Derived from U.S. range × USDA PHZM zones
[09] Caterpillar host count — Warren II 2026 (Dryad, CC0) · Tallamy host-use counts
[10] Caterpillar species — NHM HOSTS (CC0)
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