5x Large-flowered Dahlia - Mix 'Mammoth'Pretty as a picture! The flowers of the dahlia 'Mammoth' are huge. The abundance of colour is so enjoyable. This mix contains different colours. It produces a super summery sight. Plant the tubers in the spring. The flowers bloom in the summer and autumn. Space the tubers out when planting. The distance between plants is three times the width of the tuber. Plant the tuber the depth of three times the tuber's height. Put the dahlia in a sunny spot.