Guide category

Removal guides

Removal advice only helps if it fits the plant, the site and the season. These guides cover method choice, timing, safety and disposal across species.

Published guides

• Removal

  How to Get Rid of Garlic Mustard Before It Seeds

  How to get rid of garlic mustard: pull before the seed pods form, bag every plant, and plan for years of follow-up from the seed bank.

• Removal

  How to Get Rid of Invasive Plants Without Chemicals

  How to get rid of invasive plants without chemicals: pull, dig, cut on a schedule, smother or solarize. Where vinegar and boiling water fall short.

• Removal

  How to Get Rid of Invasive Plants: A Step-by-Step Guide

  How to get rid of invasive plants: identify it, check state rules, choose a method by root type, dispose of every fragment, then monitor regrowth.

• Removal

  How to Get Rid of Lesser Celandine

  How to get rid of lesser celandine: treat the green leaves in early spring, before it dies back. Dig only small patches, and never mow it.

• Removal

  How to Get Rid of Poison Hemlock Safely

  How to get rid of poison hemlock safely: cover your skin, target first-year rosettes before they bolt, and bag every piece. Never burn it.

• Removal

  How to Kill Tree of Heaven and Stop the Suckers

  How to kill tree of heaven: treat the standing tree from July to early fall, wait about 30 days, then cut. Cutting first invites root suckers.

• Removal

  How to Remove Bradford Pear and Callery Pear

  How to remove Bradford pear and Callery pear: cut and treat the stump, pull seedlings, and replace the tree with a native species.

• Removal

  How to Remove Japanese Knotweed Without Spreading It

  How to remove Japanese knotweed: treat the rhizome system over several seasons, cut before spraying, and contain every fragment.

• Removal

  Spotted Lanternfly Eggs: How to Find, Scrape and Destroy Them

  Spotted lanternfly egg masses look like gray putty, are laid September to December, and hatch late April to June. How to find, scrape and destroy them.

• Removal

  When to Treat Invasive Plants: A Seasonal Calendar

  Best time to spray invasive plants: late summer to early fall for woody plants and late-season perennials. Spring ephemerals need early spring instead.