Permanently Removing a Banana Plant: Safe, Effective Methods

The Situation

A Southern California homeowner wants to permanently kill a large banana plant near the foundation. They've heard of kerosene, gasoline, or Roundup—but worry about soil contamination and replanting delays.

Recommended Approach: Dig + Shrub Killer Drench

1. Cut the plant to ground level.
2. Dig up as much of the corm (underground root mass) as possible—it lifts out like a large potato.
3. Apply a shrub/killer drench (mix per label) to saturate the remaining root zone.

Why Avoid Gasoline/Kerosene

They contaminate soil for a year+, preventing replanting. Shrub drenches are cheaper, safer, and targeted. If digging is impractical, the drench alone will work—just slower.