14 Jan Canna lily, Indian shot
Canna indica, Canna x generalis
A very widely planted species that prefers wet boggy sites. Commonly used in septic tank absorption trenches. Garden refuse dumping and deliberate planting in reserves and wetland areas is the main problem.
Origin: Tropical and South America
Habit: Erect, herbaceous perennial to 2m high with No true stems. Stems are a collection of tightly furled leaf bases.
Leaves: Dark green to multi coloured and striped, large (60 x 25cm), arranged alternately on stems.
Flowers: Tubular flowers (yellows oranges, reds and pinks) formed in asymmetrical clusters. Spring-Autumn.
Fruit: Black, globular seeds (5-7mm long) borne in capsule, and spread by birds.
Roots: Extensive, fleshy rhizome formed underground.
Dispersal: Seed and rhizomes spread by water, humans, contaminated soil (earthmoving equipment, car tyres etc) and garden refuse dumping.
Control: Hand pull/dig, bagging all plant parts and removing from site. Foliar spray, Cut and Paint.