If you have to use a commercial brand. Scotts premium will do you better. Add extra perlite. Only use when you transplant from cup to bucket. All garden centers have a light fluffy soil with no nutes. Get that to start them in. After transplanting in scott's soil. water them and let them be for several weeks. Then introduce them to a 1/4 strenth dose of the nute of your choice.Read your plant as well as many post and they will tell you what you need to do.:thumbsup: