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Is Mimosa tree illegal in Delaware?
Sources (2)
Also called: silk tree, Albizia julibrissin. Last checked against official sources: 2026-10-14.
Federal noxious weed list (7 CFR 360.200): Mimosa tree is not listed.
What Delaware's official list says
| List / legal category | Listed as | List note | What it means |
|---|---|---|---|
| Invasive Plant List (3 Del. C. § 2903; 3 DE Admin. Code 806) — no import, export, buying, selling, transport, distribution or propagation | Albizia julibrissin | mimosa, silktree — added May 2026; woody plants are enforced 3 years after the effective date | Restricted on a phase-in schedule |
Effective dates
- added May 2026; woody plants are enforced 3 years after the effective date (from the official list entry)
Already have it in your yard?
Phase-in laws generally target nurseries and sellers on the dates shown. Plants already in the ground are typically not covered by sale bans; read the linked law for your situation.
Native alternatives for Delaware
- Eastern redbud (Cercis canadensis)
- White fringetree (Chionanthus virginicus)
- Downy serviceberry (Amelanchier arborea)
- Honey locust (Gleditsia triacanthos)
Each is recorded as native to Delaware in the USDA NRCS PLANTS Database state distribution (retrieved 2026-10-14). Check size, sun and soil fit for your site with your local Extension office.
More native swaps with hardiness, light and size →
Mimosa tree in other states
See every plant on Delaware's invasive & noxious plant lists, or check any plant.
Not legal advice. PlantLegit summarizes official lists and links the source. Laws change, local (county/city) rules may add restrictions, and the official text controls. "What it means" is our plain-English label; read the exact list wording. Confirm with the agency before buying, selling or removing plants. Full disclaimer.