Giant Feather Grass
Stipa gigantea
Poaceae · grass grasslike · introduced
Last updated
As of March 31, 2026, soil temperature at Kent / Auburn is 47.7°F. Giant Feather Grass, hardy to Zone Zones 5a–8b, is in early-season conditions in Zone 8b.
Giant feather grass, also called giant needle grass or golden oats, is a tall, tufted bunchgrass native to Spain and Portugal. Growing 3-4 feet tall (to 6 feet with flower spikes), it produces narrow, gray-green leaves and ethereal, feathery seed heads that shimmer gold in light.
Giant feather grass is extremely drought-tolerant once established and thrives in full sun with well-drained, sandy or rocky soil. Hardy to zones 6-9, it is slow-growing and long-lived. The spectacular seed heads persist through fall and winter, providing extended ornamental interest. The plant is excellent for focal points in gardens.