Decorative Flower Pots Planting Flowers Inside-do Pots Need Holes On Botton??

Planting flowers inside-do pots need holes on botton?? - decorative flower pots

For my wedding in August, we bought decorative pots for use as building blocks. We plant flowers in pots and need for the development and promotion of the customers at home and plant. I just purchaced bulbs Nacissus and I would plan to make some pots. My question is, the boat with a hole, is there a problem? Each time it was not necessary because the hole takes the ball and the plant. So, before putting them in mini-pots, plants I grow for the first time in a large pot with holes? Also, I live in northern Canada, more and more out there is not an option.