Smallish rosettes of dark, brown-red rosettes. New rosettes are freely produced and numerous so 'Bronco' soon makes an imposing colony. Probably one of our 'top ten' Semps for ease of growing, colour, size, etc.
One of relatively few Sempervivum cultivars that have been given an Award of Garden Merit from the Royal Horticultural society. Only a few dozen Semps were evaluated for this award but at least 'Bronco' performed well.