Dahlia flowers are one of the most stunning large headed flowers available at this time of year. We usually seem them from June through to October however sometimes their seasons can shorten or lengthen depending on a number of factors. Available in bright bold colours like reds and yellows these flowers are so eye catching and stunning to look at. The stems and leaves of wholesale Dahlias are not particularly pretty as the flower is grown specifically for an impressive head where the petals are quite waxy to the touch..