- Name: Blue Splash Lobelia Regatta - Scientific Name: Lobelia Erinus - Color: Blue & White - Plant Seeds: Outdoors After Frost / Indoors Weeks Before Last Frost - Bloom Time: Spring - Summer - Hardiness Zone: N/A - Plant Height: 4 - 6" Trailing/Mounding - Plant Spacing: 15 - 18" - Light Requirements: Sun - Part Shade - Soil & Water Preferences: Average - Quantity: 200 Seeds - Other: Lobelia Is Popular For Containers Or Hanging Baskets Because Of Its Trailing Habit. It Also Makes An Excellent Ground Cover. There Are A Wide Variety Of Colors Available, And They All Look Great Together. The Plants Will Be Absolutely Covered In Blooms All Summer Long! The Regatta Series Of Lobelias Start Blooming A Full Month Earlier Than Other Lobelia Varieties.