Indian Ricegrass

Achnatherum hymenoides

Poaceae

• Washington Native
• Sun
• Size: 1’ tall x 1’ wide
• Drought Tolerant: Yes
• Evergreen: No
• Flower Color: yellow seedheads (June - September)
• Wildlife Value: birds and small mammals

Indian Ricegrass is a beautiful cool-season bunchgrass that thrives in the driest of dry places. This exceptionally drought-tolerant native forms attractive clumps of fine-textured foliage and is perfectly adapted to coarse, sandy soils in full sun locations. The grass has an interesting growth habit described as having wild behavior, meaning it will self-seed and move around the garden, appearing where conditions are favorable. Despite this mobility, it is not invasive and integrates beautifully into naturalistic plantings.

The seedheads are the plant's standout feature, appearing as fluffy, delicate panicles that resemble baby's breath floating above the foliage. These airy seedheads emerge in shades of yellow and cream from June through September, creating a soft, hazy effect in the landscape. The individual seeds are enclosed in papery husks that catch the light beautifully and persist well into fall. The foliage consists of fine, thread-like leaves that form dense tufts, creating attractive mounds of soft green texture that turn golden-tan in fall and winter.

Indian Ricegrass provides valuable food for birds and small mammals that consume the nutritious seeds. The dense clumps offer excellent cover and nesting material for ground-dwelling birds. The plant was historically extremely important to Native American peoples, who harvested the protein-rich seeds as a staple food source. The seeds were ground into flour or eaten whole, and the grass was managed carefully to ensure sustainable harvests. This cultural significance adds another layer of importance to this already valuable native plant.

This graceful grass is perfect for xeric gardens, naturalistic plantings, and meadow landscapes where its ethereal seedheads can create a soft, romantic effect. The plant works beautifully in mass plantings or mixed with wildflowers and other native grasses. It excels in the driest parts of the garden where few other plants can survive. Excellent companions include Blue Flax, penstemon species, buckwheat, and other drought-tolerant natives. The fine texture provides beautiful contrast with bolder perennials and rocks. Allow it to self-seed naturally for the most authentic, naturalistic effect.