Many use herbs for cleansing areas smudging you will find it mentioned all over the site.
The herbs are mostly sage but there are others.
One herb I know works well is Bay leaf, you can buy this from your market for cooking with.
It absorbs huge amounts of negativity and can be used as a protection shield of sorts.
Place a leaf in each of your pockets and at the end of the day burn them.
There are other spells you can do with Bay leaf, but the pocket method is its natural ability.
Always good to have protection in magic especially when you have to do nothing to make it work.
Blessings to you
Most of the herbs important for magic are already available in your kitchen and your garden . You just need to know what they are used for . There are many featured articles on the site that offer information on this topic . You may easily get help from there .