No, Ortho Grass B Gon Garden Grass Killer will not be harmful to bees as long as it is used according to the product label.
Ortho Grass B Gon Garden Grass Killer is not labeled for killing sedum.
Ortho Grass B Gon Garden Grass Killer does not state that monkey grass is tolerable, it would be recommended to direct sprays to the target grass you want to kill to avoid possible injury. Other products that contain the same active do say that they are safe for liriope aka monkey grass, so it could be ok though.
Ortho Grass B Gon Garden Grass Killer is only labeled for grasses. However, the label states "Spray directly as possible on to the grass. If some of the spray were to get on the plants, immediately wash off with water. The plants are usually tolerant although there may be temporary discoloration."
Unfortunately, Ortho Grass B Gon Garden Grass Killer is not labeled to be safely applied to Thyme, Creeping Pink Chintz and Lemon for broadleaf weeds. For broadleaf weeds, you will have to spot treat with a non-selective or hand pull from your landscape ornamentals.
The information on the product page for Ortho Grass B Gon Garden Grass Killer was provided to us from the manufacturer directly and should be accurate. You may also reach out to them to confirm. They can be reached at 800-225-2883
