- You Will Get 200 Seeds Of Ornamental Pink Pampas Cortaderia Selloana Rosea Grass Seeds. - Description: - Name: Pink Pampas Grass. - Scientific Name: Cortaderia Selloana Rosea. - Color: Pink Feather Dusters. - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost. - Plant Height: 96 - 144". - Plant Spacing: 24 - 36". - Bloom Time: Late Summer. - Hardiness Zone: 7 – 10. - Light Requirements: Sun - Part Shade. - Soil & Water Preferences: Average – Dry.