- Name: Meadow Phlox - Other Common Names: Wild Sweet William / Wild Sweetwilliam / Spotted Phlox - Scientific Name: Phlox Maculata - Color: Mixed Colors - White, Pink, Purple, & Bicolor - Plant Seeds: Outdoors After Frost / Fall / Cold Stratify / Indoors Weeks Before Last Frost - Plant Height: 24 - 36" - Plant Spacing: 18" - Bloom Time: June - Aug (Long Bloom Period Of 4 - 8 Weeks!) - Hardiness Zone: 3 – 8 - Light Requirements: Sun - Part Shade - Soil & Water Preferences: Average - Quantity: 20 Seeds