Some variations of seeds are designed to float on water and are easily carried downstream or through backyard drainage to new locations. More common in wetland weed species, locally heavy downpours in your area can move bulkier seeds to your yard. Purple Loosestrife and Blue Flag Iris rely on water dispersion to some extent.
Other seeds cling to animal fur with sticky hairs and hooked spines like Common Hedge Parsley. Some species are sticky when wet, allowing them to attach themselves to the bottom of hooves and human shoes.
SO, EXACTLY HOW DO WEEDS SPREAD ANYHOW?
Unfortunately, removing them from your lawn is only part of the battle, and most herbicides are dangerous to your family, pets, and the environment. If you want the perfect yard, you need to know how weeds spread and how to fix your weed problem before it starts.
Everyone has wondered ‘how do weeds spread’ before. If your flower garden has ever been choked up with weeds, your vegetable garden infested with the problematic sprouts, or your lawn has ever produced unsightly patches of unwanted plants, you understand the difficulties and headache of weeds. Knowing how weeds spread can help you reduce the occurrence of the plants in your yard, making your lawn lush, green, and clean again.
Automobiles, bikes, and lawn equipment are some of the machines that spread seeds on their wheels and blades. Construction machines can also spread weeds. Any machine moving from one area or yard to another contributes to the increase of weeds.
Some weeds travel in packing materials, or are carried in or on machinery, perhaps in the grooves of tyres.
Weeds can be spread in crop seed.
Some weeds spread as contaminants of hay, silage or straw.
Animals can carry weed seeds in their coats.
When sand, ballast or soil is shifted about a country, so are the weed seeds which are inevitably found in these materials.
They can be spread in waste from cleaning of crop seed.
Ribwort (Plantago lanceolata) has been called “White Man’s Foot” because it closely followed the exploration of Europeans, especially from the east coast to the west coast of America. The seeds of this plant are often carried on people’s shoes.