Multiflora Rose: Invasive "Living Fence" That Became a Nightmare

Multiflora rose (Rosa multiflora) was introduced from Asia in 1866 as rootstock and later promoted as a "living fence" for livestock. It forms impenetrable, thorny thickets 5–10 feet tall, displacing native vegetation across a wide range of soils and conditions.

Why It's a Problem

• Aggressive spread by seed (birds) and arching canes that root at tips.
• Dense thickets block access and harbor pests.
• Difficult to eradicate once established.

Control Recommendation

Spray foliage with glyphosate (Roundup®) or triclopyr (Brush-B-Gon®) during active growth. Follow up with repeated treatments. Mechanical removal alone rarely succeeds due to massive root systems.

For detailed guidance, see the Iowa State Extension publication PM863.

Bottom Line

Don't plant it. If you have it, treat it aggressively—you'll regret ignoring it.