yo christmas, you will want to use this if you are using soil..it's from the guano company it's called guano tea you can use it everytime you water after the 3rd week when you start to flower you add budswel both are from the guano company and come in liquid form...they are easy to use and I have to say I never had sweeter buds..one more thing is get a book...real good book to get is "organic marijuana Soma style" this is the perfect book for beginners...good luck