A couple of hints when getting started:  (1)  Make sure your Mel's Mix is thoroughly moistened all the way to the bottom of the box before you plant.  Mel's Mix holds more water than you can imagine, so take a hose to it at first and make sure it is good and moist.  (2)  Use compost in your Mel's Mix that is made up of at least 4-5 different ingredients.  This will ensure that the soil mix has all the needed nutrients for healthy plant growth.  Homemade compost is the very best, but you can also purchase several bags of different type of compost and mix it together.  Most nurseries or garden centers only carry one or two types of compost, so you may need to purchase from several stores to get a variety.