- You Will Get 10 Seeds Of White Avalanche Lily Erythronium Montanum Native Alpine Flower Seeds. - Description: - Name: White Avalanche Lily. - Scientific Name: Erythronium Montanum. - Color: White. - Plant Seeds: Fall Sow Seeds Or Cold Stratify. - Bloom Time: April – May. - Hardiness Zone: 3 – 8. - Plant Height: 12". - Plant Spacing: 6 - 9". - Light Requirements: Part Shade. - Soil & Water Preferences: Average – Moist.