This type of shrub is a perennial aquatic bush, widespread in the humid areas of all continents, lives near rivers and lakes, in clean running waters, but it is often also found near marshes. The rush develops in tufts, rapidly covering large surfaces, producing underground rhizomes; it grows by developing stems up to 100-150 cm tall, green, without leaves or with leaves wrapped around the stem, cylindrical and flexible, usually smooth or slightly striped longitudinally; in summer it produces small, brown-green, fan-shaped flowers. Most of the varieties are not very decorative, but some are particularly suitable for growing near small ponds in the garden, such as the juncus effusus spiralis, smaller than the common rush, and with characteristic spiral growth; the juncus effusus Cuckoo, in yellow and green stripes and the juncus effusus zebrinus, with white and green stripes.
For a better development of the bulrush specimens it is preferable to plant the plants of this variety in a very sunny place, at the edge of a pond or even in a completely submerged position.
This kind of shrub can stand the cold, and in places where it does not freeze during the cold season, it is possible to favor a more compact growth by pruning it at the base in autumn, so that it can develop at its best at the vegetative restart.
As for watering, it is obvious that, being an aquatic plant, there is a need for a constant presence of water, as the soil that hosts the specimens of this particular variety must be grown in an environment with a high degree of humidity. . If placed in a container, a solution which is not recommended, however, the soil must be kept constantly wet.
Flowering rush - Butomus umbellatusButomus umbellatus is a rhizomatous perennial aquatic plant, native to Europe and Asia, now widespread also in the American continent. This plant, also known as flowering rush, ...
The rush prefers a slightly acidic, heavy and very wet soil. The rhizomes are buried in fairly large boxes, filled with soil composed largely of peat, mixed with sand, which are then sunk under water in a pond; wanting to keep the rushes on the edge, they can also be buried on the banks of a pond, paying attention that the water covers the plant up to the collar, just above the rhizome, in such a way as to keep the roots in constant contact with the water.
the rush develops naturally producing a large number of new rhizomes, if desired it is possible to obtain new plants in autumn by dividing the rhizomes, trying to leave an old and a new root in each portion; the rhizomes divided in this way must be immediately buried and sunk under water to allow the new shoots to develop in the ideal environment.
Bulrush - Juncus effusus: Parasites and diseases
Sometimes the rush can be attacked by mealy bugs and black aphids. For this reason, it is good to intervene with broad-spectrum preventive treatments to guarantee the specimens the correct protection. Numerous specific products are available on the market that allow you to effectively counter the onset of this type of problem. It is good to intervene promptly when you notice the signs of the presence of parasites to prevent the problem from spreading massively.