Although it usually goes against a gardener's nature, from time to time every gardener needs to get rid of flowers that are growing where the gardener does not want them. Perhaps the flowers are not growing the way the gardener desires, or maybe there is not enough space in a flower garden and some flowers need to go. A gardener has several options for removing flowers.
Dig the flowers out of the soil with a shovel. Work carefully and thoroughly to make sure you remove all remnants of the roots. Some flowers are so pervasive that even the smallest section of a root in the soil is enough for the plant to begin growing again. As you remove shovelfuls of soil, look carefully at the soil each time to see if you are pulling up roots. This will indicate whether you need to keep digging in certain areas. Dig until no remnants of roots remain in the soil.
Cut the flowers back to the soil level and discard the foliage in the trash. Cover the entire growing area with multiple layers of newspaper to suffocate the plants. Saturate each layer of newspaper completely with water and then add another layer until you have at least 15 layers of newspaper over the planting area. Leave the newspapers on the plants for three to four weeks.
Spray the flowers with Glyphosate. Glyphosate is an herbicide that is effective for eradicating broadleaf plants and grass. Direct the spray onto the foliage of the flowers at a time when the leaves are dry. Allow up to three weeks for the Glyphosate to affect the flowers. Wait until the entire time elapses before spraying again. It takes significant time for the chemical to absorb into the plant and reach the roots where it will kill the plant.