The aromatic calamus, also known as the odorous cane, is a semi-evergreen rhizomatous perennial aquatic plant, native to Europe, Asia and North America. It looks like a tuft of long bright green leaves, up to 40-50 cm high, and 5-7 cm wide. The fleshy rhizomes of the odorous reed are pink and tend to spread rather quickly. The leaves are quite aromatic if wrinkled; in spring it produces some spikes and greenish, insignificant little flowers, which in summer give way to small dark berries. The A. variegatus variety has variegated leaves of bright yellow.
Specimens belonging to this species are often successfully used as aquarium plants, although, given the tendency to form rosette bushes, they are not particularly suitable for setting up an original background.
The aromatic calamus, in order to develop and grow in the best way, prefers very bright positions; it can be grown both in full sun and in partial shade, in a place where it can receive some hours of direct light a day. The odorous cane, another common name for this type of aquatic plant, does not fear the cold, more easily it fears the scorching heat of the summer, therefore it is advisable to shade it in July and August, to prevent the plant withering.
If it is used as an aquarium plant it is advisable to place it in a secluded position, or behind a lower variety, since this kind of plant tends to grow in height.
The aromatic calamus it prefers very humid soils, both on the banks of streams or basins, and in underground containers at the bottom of ponds and ponds.
In general, the Acorus calamus grows without problems in any type of soil, however preferring slightly acid soils. If you choose the Asian variety, it develops more easily in marshy lands, while in aquariums it needs some special attention such as greater exposure to light and the presence of clean water, without the presence of algae.
these beautiful aquatic plants can be propagated by seed, although the plant does not always produce them, and they are not always fertile. More often the acorus calamus multiplies by dividing the clumps of leaves, since the stolons of the plant tend to branch out below the ground and produce new plants, which can be detached from the mother plant and planted individually, possibly in late summer or at the end of the summer. early spring. This system is the simplest and most convenient, given the great ease of finding the stolons to be transplanted.
Aromatic calamus, Canna odorosa - Acorus calamus: Pests and diseases
the acorus calamus they are often attacked by aphids that ruin the shoots. It is good to carefully check that there are no signs of the presence of parasites and, if they are noticed, it is necessary to intervene with timeliness in order to avoid that they propagate quickly, causing even considerable damage to the specimens. On the market there are numerous specific products that must be vaporized on the plants before the vegetative restart, for preventive purposes, or to be used when you are in the presence of these parasites.