Lobelia siphilitica f. albiflora

white cardinal flower

Eventual height & spread

Lobelia siphilitica f. albiflora

white cardinal flower

  • 1 litre aquatic pot
  • £21.99
  • shipped within 1 Week
  • 3 × 9cm pots
  • £27.99
  • shipped within 1 Week
  • 3 × 1 litre aquatic pots
  • £34.99
  • shipped within 1 Week
Delivery options
  • Standard £5.95
  • Position: full sun
  • Depth of water: 0-5cm (0-2")
  • Rate of growth: average
  • Flowering period: July to September
  • Hardiness: fully hardy


Presenting an upright and clump-forming nature, this deciduous herbaceous perennial showcases finely toothed, lance-shaped leaves in a crisp light green hue. As summer gracefully shifts to autumn, the white-flowering variant of Lobelia siphilitica steals the spotlight. Delicate spikes of pure white tubular flowers adorn sturdy, upright stems, crafting an illuminating display in consistently moist or boggy garden environments.


  • Garden care:
    Plant out in reliably moist or boggy soil, or pot up into a pond basket and place at the margins of a pond in shallow water no deeper than 5cm (2"). A low maintenance plant, cut back foliage to ground/water level at the end of the year. Divide congested clumps in early spring every few years. Protect the crown of the plant during winter with a thick, dry mulch.
    • Humans/Pets: Harmful if eaten; skin irritant