Weeds"A weed is a plant in the wrong place"
It can be invasive or merely a nuisance. Most plants we call weeds are native to our prairies and survive well here. Some have been accidentally imported from other areas or countries, and grow too well in ours. Some are attractive and easy enough to pull out that they can be controlled and others must be eradicated regularly so we won't become overwhelmed.
At my place, we have what we call water and weed Wednesday, although this summer it happens every day 😉. Before we weed the area, it gets a great soaking and then the weeding starts. Do small areas that you can reach easily otherwise you'll compact the soil mucking through it all. So, take it in little bits for that reason and of course, so it's not overwhelming. Another good thing about watering and weeding you will quickly understand how much water it takes to get water more than a couple of inches down. It is always best to get the weeds when they are small, but we all know that some grow super-fast and can get out of hand quickly. When the soil is moist weeds will for sure come out more easily with most of the root intact. This is especially helpful to know when you are trying to dig out Creeping Bellflower.
Photo by D. Gordon E. Robertson (as posted on Wikipedia)