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Dorchester County, SC Invasive Plant Rules: Prohibited Species (2026)

Some Restrictions
Compiled from the official code textEditor Martyn O'NeillLast verified August 2026

Key Facts

Named invasive species
Sweet Gum, Bradford Pear, River Birch
Other species
Must be arborist/landscape architect certified
Approval authority
Zoning Administrator
Permit still required
Yes, under § 12.4.4(b)
Governing section
§ 12.4.4(c)(7)

Summary

Dorchester County lists Sweet Gum, Bradford Pear, and River Birch as illegal, invasive, or poor-quality species, which by itself is grounds for the Zoning Administrator to approve a Tree Removal Permit for those trees, unlike other protected species.

These county ordinances apply to unincorporated areas of Dorchester County. Incorporated cities within the county may have their own rules that take precedence over county-level regulations.

(c) General criteria: The following criteria shall constitute grounds for a Tree Removal Permit regardless of use or zone. ... (7) Trees determined to be illegal, invasive, or generally poor quality that are of the following species: Sweet Gum, Bradford Pear, River Birch, and other invasive species that are certified as such by a Landscape Architect or Certified Arborist and approved by the Zoning Administrator.

Full Breakdown

4(c) of the Zoning and Land Development Standards sets out the general criteria that constitute grounds for a Tree Removal Permit in Dorchester County regardless of use or zone. Alongside hazardous, diseased, or structurally damaging trees, item (7) of that list singles out species: trees determined to be illegal, invasive, or generally poor quality that are of the following species are grounds for removal: Sweet Gum, Bradford Pear, and River Birch. The provision also opens the door to additional species beyond that named list, allowing removal of any other invasive species that is certified as such by a Landscape Architect or Certified Arborist and approved by the Zoning Administrator.

2 does not receive the same protection as a native hardwood of the same size, because its species alone satisfies the removal criteria. 4(b): filing an application at least three business days before removal, allowing the Zoning Administrator or a designee to inspect the site, and marking trees approved for cutting with engineer's tape. The permit is valid for six months once issued. For species not on the named list, the applicant carries the burden of obtaining certification from a Landscape Architect or Certified Arborist holding a county business license before the Zoning Administrator will approve removal on invasive-species grounds.

Violations & Fines

Removing a tree on invasive-species grounds without first obtaining the Tree Removal Permit under Section 12.4.4 is a violation even if the species itself (Sweet Gum, Bradford Pear, River Birch, or arborist-certified invasive) would have qualified for approval. The permit and its posting requirement exist independent of the removal criteria, so skipping the application exposes the owner to enforcement under the county's tree-and-canopy provisions.

Frequently Asked Questions

Which tree species does Dorchester County treat as invasive?
Section 12.4.4(c)(7) of the Zoning and Land Development Standards names Sweet Gum, Bradford Pear, and River Birch as illegal, invasive, or generally poor-quality species that qualify for a Tree Removal Permit. Other species can qualify too, if a Landscape Architect or Certified Arborist certifies them as invasive and the Zoning Administrator agrees.
Do I still need a permit to remove a Bradford Pear?
Yes. Being an invasive species under Section 12.4.4(c)(7) is a ground for approval, but you still must apply for a Tree Removal Permit from the Zoning Administrator at least three business days before cutting the tree, per the procedure in Section 12.4.4(b).
Why are these species treated differently from other protected trees?
Sweet Gum, Bradford Pear, and River Birch are named in Section 12.4.4(c)(7) as invasive or poor-quality species, so even if one is large enough to otherwise qualify as a Significant or Grand tree under Section 12.4.2, its species alone gives the county grounds to approve its removal.

Sources & Official References

Other rules in Dorchester County

All Dorchester County rules

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