Leptinella pyrethrifolia: Brass Buttons

Leptinella pyrethrifolia (syn. Cotula pyrethrifolia) is a fascinating, tiny, mat-forming perennial from New Zealand. It creates a dense, moss-like carpet of feathery, fern-like, bronze-green to dark purple foliage. The leaves are finely divided, giving a delicate, lacy texture. Inconspicuous, button-like flower heads (hence "Brass Buttons") appear in summer, but the foliage is the main attraction. It tolerates light foot traffic.

Plant Profile

This "brass buttons" plant grows best in full sun to part shade and moist, well-drained, humus-rich soil. It spreads by rhizomes to form a tight weed-suppressing mat. It is used as a lawn substitute in mild climates, between pavers, in rock gardens, and in fairy gardens. It is not drought-tolerant and requires consistent moisture. Hardy in USDA zones 7-9, it may brown in harsh winters but recovers.