Examples of Substrate and Watering Water Adaptation
Adapting the substrate and watering water to the specific needs of bonsais is a crucial step to ensure their optimal health. Here are some concrete examples illustrating how to adjust the substrate and water according to different water sources and the needs of bonsai species.
A. Substrate Adaptation According to Water Source
Alkaline Tap Water: If tap water is alkaline, using a more acidic substrate like kanuma or adding peat can help balance the pH. Acid Rainwater: When using rainwater, a substrate like akadama or universal potting soil can neutralize excessive acidity.
B. Practical Examples for Different Species
Azalea (Rhododendron): Preferring an acidic substrate, kanuma is an excellent choice if the watering water is neutral or slightly alkaline. If using acidic rainwater, a mix of kanuma and akadama can provide an ideal balance.
Japanese Maple (Acer Palmatum): Tolerating a wider range of pH, a mix of akadama, pumice, and pine bark offers a good balance for using most water sources.
C. Water Management Based on Substrate
Fast-Draining Substrates: For substrates like pumice or black lava, which drain quickly, watering needs to be more frequent, especially if the watering water is very pure and less rich in minerals.
Water-Retentive Substrates: With substrates like peat or kanuma, which retain more water, it is crucial to monitor watering frequency to avoid root rot, particularly when using rainwater.
D. Tips for pH Adjustment
Regular pH Testing: It is important to regularly test the pH of the substrate and water to ensure they stay within ideal ranges for each species.
Gradual Adjustments: All pH adjustments, whether in water or substrate, should be done gradually to avoid shocking the tree.
These examples highlight the importance of a personalized approach in bonsai cultivation. Understanding the interactions between watering water, substrate, and the specific needs of each bonsai species is essential to ensure their growth and flourishing.
