The best45ever trailing petunias from seed33 these spectacular cascading varieties will outperform expensive cutting45raised surfinia petunias every time producing trailing stems of up to 1m 403ft41 in length continuously smothered in blooms all summer until the first frosts 39rose vein velvet39 is the latest colour in the 39velvet39 series and promises to be as impressive as its forebears stunning in baskets window boxes and other containers as well as in border