- You Will Get 1000 Seeds Of Plains Coreopsis (Golden Tickseed) Coreopsis Tinctoria Flower Seeds. - Description: - Name: Plains Coreopsis. - Other Common Names: Golden Tickseed / Annual Coreopsis / Calliopsis. - Scientific Name: Coreopsis Tinctoria. - Color: Yellow With Red Centers. - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost. - Plant Height: 24 - 36". - Plant Spacing: 15 - 18". - Bloom Time: Summer – Fall. - Hardiness Zone: N/A (But Reseeds Itself Easily, So It Acts Like A Perennial In All Zones). - Light Requirements: Sun - Part Shade. - Soil & Water Preferences: Any Moist – Dry.