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of Bonsai Plants in small, very shallow dishes.
The Tropf-Blumat „Bonsai“ is suitable for planting dishes of up to 3 cm deep, since the size of the ceramic cone is about Ø 17 x 28 mm.
the regularity of watering, especially during the summer, results in much more stable growing conditions.
Due to the extreme growing methods, bonsai plants require excellent growing conditions- i.e. a constant moisture level. However, too high moisture levels should usually be avoided, and standing water in any case!
It comes down to the skill of the bonsai gardener to adapt the Tropf-Blumat to these requirements (see below) or vice versa, to cultivate the bonsai under the changed moisture conditions.
It is advisable, when attaching to a mains water supply, to use a pressure reducer suitable for use with the rest of the Tropf-Blumat-System. Alterna- tively, it is possible to use an elevated tank (must be at least 1 m higher) as a water source, as long as the refilling of the tank is assured.
1) Soaking, Filling
Thoroughly soak ceramic cone (about 30 min), afterwards, open the spout under water in order to fill the entire sensor with water, being careful that all trapped air is allowed to escape.
In order to insert the ceramic cone and achieve maximal soil contact, a fitting
(somewhat smaller, about 15 mm Ø, about 20-25 mm deep) hole should be
pre-drilled using the matching soil drill at an appropriate location, for example, an inconspicuous spot near the periphery, but at least 1 cm away from the side of the dish. If necessary, it is possible to cut individual roots that are interfering using scissors or pincers. The ceramic cone should be inserted deep enough to be fully covered, at least up to the lower edge of the plastic neck. After insertion, press substrate around the sensor in order to stabilize the position.
As a rule, the instructions for adjusting the normal Tropf-Blumat can be followed. The maximum moisture level is used for adjusting purposes: intensely moisten the substrate and Tropf-Blumat, turn the adjusting screw until there is no dripping. Later, this adjusting screw will merely be changed by ± 2-3 marking positions. To be precise, a moderate moisture level is maintained by adjusting the duration of watering. This must be carefully monitored in containers with little substrate volume, particularly for bonsai gardening. The length of the projecting drip tubing determines the duration of watering and therefore the moisture level:
tubing projects short length = duration of watering short and vice versa.
The standard projection length of 8 cm can be reduced in small containers to 3-5 cm, depending upon the desired moisture level and the kind of substrate used (based on own experience).