Geranium caespitosum, commonly known as purple cluster geranium, is a perennial herb that is native to montane meadows, open woodlands, and rocky slopes in the western United States and northern Mexico. This species typically grows to a height of 10-50 cm and features a clumping habit with deeply palmately lobed leaves that provide a textured backdrop for its showy flowers. The flowers, which bloom from May to September, are a striking purple to magenta color, with five petals and five stamens, and they attract a variety of pollinators.

The purple cluster geranium is valued for its drought tolerance and long blooming period, making it a suitable choice for xeriscaping and native plant gardens. It thrives in full sun to part shade and prefers well-drained soils, although it can tolerate damp soils in its natural habitat. While it is used medicinally by Native American tribes and as turkey food, in cultivation, it is primarily appreciated for its ornamental qualities and its ability to adapt to various garden conditions. Care should be taken to avoid overwatering, as this can lead to root rot.CC BY-SA 4.0