These petunias seeds are the Double Cascade Blue have a nice dark double flower on them. These are the same as the original Madness series these double petunias look great in pots, baskets and planters. Compact plant delivering masses of big 3" flowers all summer long. Double petunias come back quickly after rainstorms. With great disease tolerance double floribunda petunias are rapidly gaining popularity across the country. Have large double blooms on them.