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Common Name: Cardinal Flower
Lobelia cardinalis is a Perennial up to 1.00 metres tall.
It has uses.
N. America - New Brunswick to Quebec, south to Florida and Texas.
Damp shores, meadows and swamps[
Requires a deep rich soil and plenty of moisture[
]. Grows well in heavy clay soils. Succeeds in standing water though is not then so long lived[
]. Succeeds in full sun or light shade[
]. Requires protection from the wind[
Dormant plants are hardy to at least -25°c[
], though they can be excited into premature growth in mild winter areas and are then more susceptible to frost damage[
A very ornamental plant[
Hybridizes freely with other members of this genus.
Seed - best sown as soon as it is ripe in a cold frame[
]. When they are large enough to handle, prick the seedlings out into individual pots and grow them on in the greenhouse for their first winter. Plant them out into their permanent positions in late spring or early summer, after the last expected frosts.
Division in spring[
Basal cuttings in spring[
]. Harvest the shoots when they are about 10cm long with plenty of underground stem. Pot them up into individual pots and keep them in light shade in a cold frame or greenhouse until they are rooting well. Plant them out in the summer.
Layering in moist sand, it forms roots at the nodes[