- Name: Brilliant Phlox - Scientific Name: Phlox Drummondii - Color: Two Tone Pink - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Plant Height: 18" - Plant Spacing: 12 - 15" - Bloom Time: Summer - Hardiness Zone: Reseeding Annual - Light Requirements: Sun - Part Shade - Soil & Water Preferences: Average – Dry - Quantity: 100 Seeds