Purple or Blue Lobelia has beautiful spikes of bright blueish purple flowers on long, narrow spikes. Purple Lobelia blooms from July thru September. Foliage is green with a red tinge. Great plant to attract hummingbirds and butterflies to the water garden.
Purple Lobelia (Lobelia vedrariensis)
Light Requirements: Full sun to part shade
Height: 2'-4' - Spread: 12"
Water Depth: Moist soil or water up to 1" deep (Maximum water depth is for mature bog plants)
Hardiness Zone: 5-10