Lambsquarters are everywhere but small yet. Nevertheless I need to pull out a bunch now to make room for other things. And they must drain out some of the nutrientrs from the plants they appear with. They're all over spots of the garlic, and the irises! I'm always glad to see them: #1 they indicate a good soil, at least it's high in nitrogen, #2 they make the most delicious cooked green. And they're good in salads too! They take a bit of work processing but it's fun and medative. The leaves are small but with a compost bucket at hand, the good parts can go into another bowl for washing. Or sometimes, if I pick them in the morning, but don't have much time, I just fill a bowl with cold water and stick them in roots and all; that evening when I have more time I can pluck the leaves and wash them.