Bonsai substrate quiz

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July 20, 2025

🧠 Quiz: How much do you know about bonsai substrates?

Test your knowledge of bonsai substrates

1 / 15

What pH value is ideal for most bonsai species in the substrate?

2 / 15

Which of these actions improves drainage in a pot without changing the entire substrate?

3 / 15

What role does Kiryuzuna play in a mixed substrate?

4 / 15

What type of bonsai preferentially require Kanuma as the main substrate?

5 / 15

Which of these materials has the greatest nutrient retention capacity?

6 / 15

Why is it recommended to avoid using peat in outdoor bonsai?

7 / 15

What happens if very fine-grained akadama is used with coarse-rooted species such as olive?

8 / 15

What symptom indicates root asphyxia due to poor drainage?

9 / 15

Which of these substrates is more draining and poor in nutrient retention?

10 / 15

Which substrate component is primarily used for its water holding capacity?

11 / 15

What type of grain size is recommended for trees with fine roots such as Chinese elm?

12 / 15

How often should akadama be renewed in small pots?

13 / 15

What happens if the substrate has excess organic matter?

14 / 15

What is cation exchange capacity (CEC)?

15 / 15

What does it mean for a substrate to be inert?

Your score is

The average score is 63%

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1 Comment

  1. Tendero Abellan - 24 de July de 2025

    Estos cuestionarios me parecen muy buenos para mejorar y aprender del curso.

    Reply

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