For our wedding favor we are doing mini terra cotta pots painted with chalkboard paint and the top ring is painted in our wedding colors(hot pink and apple green). We bought tulip bulbs to put in them so everyone can take them home and plant them! But the problem is i don't know whether i should just place one bulb in every pot or if i should put potting soil in the pots and "plant" the bulb. Any ideas what would be better???