Lobelia siphilitica (Blue Cardinal Flower) Butterfly Weed 18-22" tall heavily branching plants

18-22" tall heavily branching plants hold long-lasting bright purplish-pink flowers in spring to summer

'Francee' flowers lavender in late July and into August

Favored by Hosta lovers and experts

but will tolerate dry soil and part shade

Grow in average

Lobelia siphilitica (Blue Cardinal Flower) Butterfly Weed 18-22" tall heavily branching plantsA bit more sun tolerant than the Red Lobelia, the blue spikes of this native flower appear in August and September with the same upright growth habit, but with a bushier shape. Growing 3 4' tall. The blue Lobelia likes a moist to average growing situation. Combines well with Eupatorium coelestinum, Chelone 'Hot Lips' and Carex plantaginea. Sunlight Requirements: Full Sun to Partial Shade USDA Hardiness Zones: 5 9