How to Identify Nutsedge
Nutsedge is the weed that won’t die no matter what you spray on it. That’s because it’s not a grass and not a broadleaf. It’s a sedge, and it requires its own class of herbicide.
The fastest identification test: roll the stem between your fingers. If it has three distinct edges (triangular cross-section), it’s a sedge. Grass stems are round or flat. The saying is “sedges have edges.” Nutsedge also grows faster than surrounding turf, producing taller, lighter yellow-green shoots that stand above the lawn within days of mowing.
Why It’s So Persistent
Nutsedge produces small underground tubers (nutlets) that store energy and survive winter, drought, and most herbicides. A single yellow nutsedge plant can produce hundreds of nutlets per season, each capable of sprouting a new plant. The tubers can survive in soil for years. Pulling the plant without removing all the tubers just stimulates more growth from the remaining nutlets.
Nutsedge thrives in wet or poorly drained areas. It often appears first in low spots, near downspouts, or anywhere water collects. If you have a recurring nutsedge problem, there’s almost certainly a drainage issue underneath it.
