Discover Pinterest’s best ideas and inspiration for Bluelobelia. Get inspired and try out new things. The BlueLobelia (Lobelia siphilitica) flowers in late summer to mid-autumn by producing a raceme of adorable, blueish, two-lipped flowers. Buy BlueLobelia Plants Online Wholesale. BlueLobelia Perennials add a unique pop of azure freshness to any landscape. This hardy perennial is versatile and easy to care for. Find BlueLobelia Flowers stock images in HD and millions of other royalty-free stock photos, illustrations and vectors in the Shutterstock collection. Mature great bluelobelia typically reach 2 to 3 feet tall and 1 to 2 feet wide. They primarily spread through self-seeding. Native geographic location and habitat Stock Photo Lobelia. Blue tail Lobelia sapphire flowers or fringing Lobelia or Lobelia Erinus 'Sapphire'. Dark BlueLobelia was selected for its superior heat tolerance. Unlike other trailing lobelias Magadi Dark BlueLobelia will continue to bloom even in the heat of the summer. Human Connections. The beautiful blue blossoms in August make this a good choice for gardens with the right conditions. Detail of BlueLobelia Flower. The Great BlueLobelia (Lobelia siphilitica) is a hardy Cardinal Flower bearing tall, leafy spikes of clear blue flowers. Members of the Bellflower Family, this showy perennial can be... Great BlueLobelia is a tough perennial for the woodland. Let’s take a closer look at this often-overlooked native perennial wildflower that’s at home in hardiness zones 3-7.