- You Will Get 100 Seeds Of Purple Lovegrass Eragrostis Spectabilis Native Love Grass Flower Seeds. - Description: - Name: Purple Lovegrass. - Other Common Names: Purple Love Grass. - Scientific Name: Eragrostis Spectabilis. - Color: Purple. - Plant Seeds: When Soil Temp Warms To 70f. - Bloom Time: July – Aug. - Hardiness Zone: 3 – 10. - Plant Height: 18 - 36". - Plant Spacing: 18 - 24". - Light Requirements: Sun. - Soil & Water Preferences: Average – Dry.