I am going to give you guys some links to sites that you might find helpful and that can go a lot more in depth on certain aspects of plants than I can most of the time.
A list of planting schedules and seasons by your area and the plant you wish to plant.
Recipes for Herbal Teas you can make at home and what they can help with.
How to make and take care of a terrarium.
A list of soil types and what grows best in what soil.
A complete plant database for the United States by state, with invasive and endangered plant lists.