Every purchase supports the work of the RHS Every purchase supports the work of the RHS
  • cardinal flower
  • Eventual height: 0.9m
  • Eventual spread: 0.45m

Lobelia cardinalis

cardinal flower

RHS award of garden merit £9.99
Pot size 1 litre aquatic pot
1 litre aquatic pot
  • Position: full sun or partial shade
  • Depth of water: 0-30cm (0-12in)
  • Soil: deep, fertile, moist soil
  • Rate of growth: average
  • Flowering period: June to October
  • Hardiness: fully hardy

    This impressive perennial produces showy red flowers that really stand out from the crowd. They form in tall spires, which if cut back after the flowers have faded, will usually go on to form lateral shoots that will carry even more flowers later in the season. This usually ensures that there is a continuous display of flowers from early summer to mid-autumn. An exotic-looking plant that looks great at the edge of a pond or forming generous drifts in a bog garden.

  • Garden care: These plants are potted up (using a suitable aquatic compost) into 1-litre aquatic pots. These pots are made of a fine mesh, which allows water to circulate through the compost, providing the plants with both oxygen and nutrients. If you are using them as a aquatic plant, they can be placed straight into the pond, however they will preform better if planted out sooner rather than later. To enhance flowering divide congested clumps every three to five years.
  • Harmful if eaten

Goes well with...

  • Matteuccia struthiopteris
    Matteuccia struthiopteris
    £5.99 Buy
  • Floating island for 1 litre shallow water plants
    Floating island for 1 litre shallow water plants
    £16.99 Buy
  • Pond and drain gloves
    Pond and drain gloves
    £12.99 £11.04 Buy
  • Iris Her Highness
    Iris 'Her Highness'
    £17.99 Buy
  • Zantedeschia aethiopica Crowborough
    Zantedeschia aethiopica 'Crowborough'
    £11.99 Buy
  • Pontederia cordata
    Pontederia cordata
    £9.99 Buy