Growing Guide: Sweetgrass

Attribute Details
Botanical Name Hierochloe odorata
Common Names Sweetgrass, Holy Grass, Vanilla Grass, Zebrovka, Seneca Grass
Family Poaceae
Origin North America, Northern Eurasia
Plant Type Perennial Herb
Life Cycle Perennial
Mature Size Up to 3 ft. tall
Spreads About 3 ft. per year via underground rhizomes
Light Requirements Full Sun, Part Shade
Water Needs Moderate to High (prefers consistent moisture)
Soil & Moisture Rich, moist, well-draining soil
Bloom Time Late spring to summer
Flower Color Greenish spikelets
USDA Zones Outdoors perennial in 8–10; annual in 4–7; patio/greenhouse 4+
Growth Rate Medium
Self-Fertile Yes
Harvest Season Year-round
Propagation Grown from seed; capable of harvest within growing season once established