Ajuga 'Metallica Crispa' has extremely crinkled and twisted shiny, dark green to maroon leaves. 'Metallica Crispa' Bugleweed is very compact with short spikes of blue flowers in spring to early summer. Plant Ajuga 'Metallica Crispa' in a container where is its unusual foliage can be fully appreciated. A slow-growing perennial plant, Ajuga 'Metallica Crispa' prefers protection from afternoon sun. Ajuga will tolerate conditions ranging from dry to wet. Bugleweed can be grown under black walnut trees and will tolerate clay soil.