Sometimes care instructions for plants can be so confusing.* :?* Medium water would mean to let the soil dry a bit between watering.* Give them a deep watering once a week if you don't get an inch of rain each week for the first few months and make sure they are mulched.* Leaves are expendable to many shrubs and trees and they will shed them in times of stress.* Here's a helpful site about mulching and watering shrubs.** I will say that I prefer adding lots of compost to the planting bed instead of using synthetic fertilizers as this site suggests.
When weeding, the best way to make sure you are removing a weed and not a valuable plant is to pull on it. If it comes out of the ground easily, it is a valuable plant.