'Autumn Explosion' has purple and lavender flowers speckled with white. Blooms in the early to mid season at 33 inches high and can rebloom in late summer. Fragrant. Tall Bearded (TB) irises, previously known as Iris germanica, have greyish strap-like, pointed leaves from fleshy rhizomes and tall stems of gorgeous, often fragrant, flowers that come in every colour of the rainbow. Divide every two to three years (or when clumps become congested and flowering decreases) just after blooming. Trim the foliage back to a third and plant the rhizomes at or just below soil level. Deer and rabbit resistant.