Ortho Weed-B-Gon is a suitable chemical herbicide for over 250 different weed species, mostly broadleaf weeds. At the same time, it is safe for many of the popular grass species used on lawns. ... If applied correctly, Ortho Weed-B-Gon starts taking effect after just 10 hours and kills off all weeds within 1 – 2 weeks.

How fast does Weed B Gon work?

Grass-B-Gon can be safely used around ground covers, plant beds, landscapes, flowers and shrubs and works within one to four weeks after application.

What does Weed B Gon kill?

Kills Dandelion, Chickweed, Knotweed, Plantain, Henbit, Spurge and many other broad leaf lawn weeds.