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Yes, dandelions are considered perennial, broadleaf weeds.

Sealing pavers helps cut down on weed growth, but it won’t wipe it out entirely. What it does really well is harden the joint sand—especially if you’re using a sealant with polymer additives—so weeds have a much harder time breaking through. It also blocks airborne seeds from settling in the cracks and keeps debris from building up. This results in fewer weeds, easier maintenance, and a cleaner-looking surface. Just remember, sealing is a strong defense—not a one-and-done solution. Stay on top of sweeping, spot-treating, and resealing every few years to keep your weeds in check.

Water the lawn thoroughly, apply fertilizer, and overseed if necessary to promote healthy growth.

The safest method to avoid killing your turf grass is hand pulling Johnsongrass. You can also apply vinegar for a safer herbicide, but it will still burn your lawn if it gets on it.