Lobelia Siphilitica Blue

Tall spikes of bright blue flowers rise above the light green foliage of this hardy perennial throughout summer. Moisture-loving Lobelia siphilitica is a handsome, statuesque plant that grows happily in sun or semi shade. This tall perennial makes a lovely addition to moist borders and bog gardens, or planted in the shallowest margins of ponds. Height: 120cm (47″). Spread: 30cm (12″). Planting depth: Zones 1 & 2 to 5cm (2″) below water level.

Grow Lobelia siphilitica in a sheltered position in sun or semi-shade on reliably moist, fertile soil. Lobelia copes well with boggy soils and can be planted at the edge of ponds and streams with the crown to a maximum depth of up to 5cm (2″) below water level.