Bulbous plants are perennials of a very special kind. The underground storage organ already has the disposition for buds, leaves and inflorescence in it, when it is planted in the bed in autumn. The onion peels have sufficient reserves of nutrients and energy to produce the desired sprouting in the late winter and spring. Classic spring flowers such as snowdrops (Galanthus nivalis), winter aconites (Eranthis hyemalis) and crocuses (Crocus) bravely make their way through a snow cover. Tulips (Tulipa), narcissus (Narcissus) and lilies of the valley (Convallaria majalis) are brightly shining in the sunlight. Some of the most glorious summer flowers thrive as bulbous plants, such as lilies, Crinum x powellii and irises. In May the non-hardy bulbous plants take their place in the bed or tub to transform the autumn garden into a beautiful flowering sea. Now the hour of dahlias (Dahlia), montbretias (Crocosmia x crocosmiiflora) and chocolate cosmos (Cosmos atrosanguineus) has come. Detailed instructions leave no questions unanswered on how to properly plant, nurture, cut and overwinter your favorite bulbous plants.