weeds again

why weeds help so helpful. first they tell us what can grow in our garden. 2nd they tell us what our soil need to grow the kind of garden we want. Think of clover tell us the the soil is low in nitrogen which is has the the symbol N and is the first number on a bag of fertilizer
onion can tell us the we need calcium. Like i have said look at your yard, you can learn a lot from your weed.