June - October
A useful annual for the rock garden, containers, hanging baskets or as an edging in the border.
Sun to shade in moist well-drained soil
'Compact Royal Jewels' 10-14 inches tall, blue flowers
'Crystal Palace' 3-6 inches tall, blue flowers, low mound
'Regatta Series' 3-6 inches tall, blue flowers. good heat tolerance
'Laguna Series' 6-12 inches tall, blue and pink flowers. Good heat tolerance
'White Star' 6-12 inches tall, white flowers, good heat tolerance
'Techno Heat Light Blue' 6-12 inches tall, blue with white flowers, loose open habit, good heat tolerance
Lobelia often does better in the cooler weather and often goes out of bloom when it gets hot. Look for heat tolerant cultivars. Shear back after first bloom, fertilize and water to maintain flowering in the summer.