The Pleioblastus pygmaeus is an evergreen herbaceous plant, native to Asia; it is also called arundinaria pygmea, or Sasa pygmea. The radical apparatus of the dwarf bamboo is rhizomatous, which tends to widen over the years, with a ground cover; from each rhizome develop thin green canes, at most 80-100 cm high, semi-woody, which bear long leaves with a paper-like, light green consistency, forming a round, very dense shrub. These varieties of dwarf bamboo they tolerate pruning very well, and are also used as bonsai, or to cover large areas of land, frequently pruning them to a height of 25-30 centimeters. Sometimes dwarf bonsai are also used in a container, in an apartment.
The plants of dwarf bamboo prefer sunny, or slightly shady locations, possibly sheltered from the cold winter wind; they do not fear the cold, and this species can withstand very harsh temperatures, down to -15 / -20 ° C; in places with very hot summers it is preferable to place them in a partially shaded place, to prevent them from being exposed to direct sunlight in the hottest hours of the day.
As for the watering of Pleioblastus pygmaeus it is good to establish the quantity of water in relation to the period. In spring and summer, from March to October, it is good to keep the soil slightly damp, avoiding water stagnation; they can withstand short periods of drought, preferring regular watering anyway.
The bamboos bloom only sporadically, at very irregular intervals; when a plant produces flowers it may need fertilizing; sometimes it may be necessary to fertilize specimens that have little soil or that tend to produce yellowed foliage. Use a balanced release fertilizer. These plants can withstand wet and damp soil, they are in fact also used near water gardens.
Pleioblastus pygmaeus or dwarf bamboo is grown in any garden soil, preferring fairly heavy soils that are not necessarily rich in organic matter. The specimens grown in pots need to be repotted every 2-3 years. It is good to maintain a correct degree of humidity at the foot of the plant using mulching material, which will guarantee perfect humidity without causing water stagnation.
Bamboo can become invasive, so it is advisable to provide containment devices if you do not want to let them spread in the garden.
The multiplication of Pleioblastus pygmaeus can occur by seed, but flowering is a fairly rare event, so the seeds are difficult to find. Generally this type of plants propagates by stem cutting, removing the new shoots in spring, or by dividing the tufts of rhizomes, which take root very quickly.
Dwarf bamboos - Pleioblastus pygmaeus: Pests and diseases
Dwarf bamboo plants are a rather rustic and resistant variety and are generally not attacked by pests and diseases. In case of suspected attack by parasites it is possible to intervene with one of the many specific products available on the market, which are very effective in resolving the problem definitively.