For most gardeners, the war with weeds begins when late-winter snow melts, revealing the first wave of weed invaders. Armed with spade, hoe, and bottles of weed killer, the battle is joined by brave gardeners, intent on making a difference in their yards that year. Summer brings casualties on both sides, but the weeds gain ground as summer heat wicks away the energy of even the most seasoned garden warrior.

By the time cool autumn temperatures prevail, most gardeners are ready to put their landscapes to sleep and wait until the next spring to begin again. However, fall is one of the best times of year to bring the battle back to the weeds in all its sap-spilling ferocity.

For perennial weeds, some of the most ruthless and long-lasting of the invaders, fall can be especially deadly. Perennial weeds are those that survive from year-to-year, usually by hibernating through the winter while using resources they store in roots. Some of the most recognizable perennial weed enemies are; field bindweed (a.k.a. morning glory), dandelions, common mallow, white top, black medic, and nightshade.

These weeds are so successful because their roots have adapted to survive weed control efforts. Most perennial weeds have developed stems that easily detach from their roots when pulled. In addition, their roots are usually large and hold lots of nutrients that allow them to avoid severe injury from pulling and even herbicides and regrow quickly. Also, many of these weeds spread via their roots and can form colonies quickly if uncontrolled.

Though they are formidable foes, never fear. Conquering these weeds is possible, but it takes time, consistency, and an unquenchable burning hatred. Since their strength is in their roots, the first priority is to control the roots. Although protected by soil, roots are most vulnerable in the fall.