Geranium 'Sirak Geranium 'Sirak' Sirak forms a bright green mound of deeply lobed leaves during the growing season, which supports lilac-pink flowers with distinct veining that bloom 16 " to 24" above the foliage in June and July. This Geranium will grow in most conditions, although it will perform at it’s best in a well-drained, moist soil in full sun or partial shade. After flowering the foliage can be cut down to allow fresh growth to appear, together with a second spell of blooming in late summer and early autumn. Geranium 'Sirak