13x Crocosmia 'Lucifer' + 2x Agastache 'Black Adder'Extra variety in the back garden? The border mix including Crocosmia 'Lucifer' and the Agastache 'Black Adder' is a great choice. The purple and red flowers add a dark but vibrant touch to the garden! The flowers also attract insects. Plant the tubers in the spring. The flowers bloom in the summer. 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