Gen,
Sedgehammer was so pricey for years when it first came out. I remember 4 oz of concentrate was over $100. I don't recall the amout to mix in a gallon but even an ounce would be over $25 per gallon. There are two or three products for sedge control on the market today and priced reasonable. Our club display garden is in a city park and the park service uses a sedge killer. They spray it in the daylily bed and at best it makes the plants look brown and sick and at worst it may kill one on ocassion. They think it should be specific control of the pest plants and safe to use around other types of plants.
I have horrible sedge problems and crabgrass and bermuda grass and johnson grass. Every kind of pesky weed and grass including what we call goose grass. I buy the generic glyphosphate 41% concentrate 5 gallons at a time. I wish I could buy high yield grass killer concentrate in larger containers. I buy Snap Shot in 50 lb bags. We still have so much weed and grass control problems. My dad will tell you that if you want to make a new garden around here, you spray the area continually for about 3 years and then use it for gardening. I get my new gardens in use after two rounds of spray a few weeks apart. Bermuda grass is very hard to kill out. After all roundup was made to spray over the top of bermuda grasses and kill everything else.
Barbalee, yes it is possible. If you buy a potted plant you can bring in weed and grass and unwanted seeds also. I have seen nursery plants, even at the most reputable greenhouses with various weeds, trees, and even found poison ivy growing in potted plants for sale.
I have had different kinds of weed seed that were not found in my garden, spout up after adding packaged soil, compost, or peat.
