baiyoudo o tsukau.

I use potting soil.

Breakdown of baiyoudo o tsukau.

• を: direct object particle
• 使つかう: to use
• 培養土ばいようど: potting soil

Questions & Answers about baiyoudo o tsukau.

How do you read 培養土を使う?

It is read:

ばいようど を つかう

More naturally without spaces:

培養土を使う。

A few notes:

• 培養土（ばいようど） = potting soil / cultivation soil / growing medium
• 使う（つかう） = to use

Also, the particle を is written を but pronounced お.

What does を do in this sentence?

を marks the direct object of the verb.

So in:

培養土を使う

the thing being used is 培養土.

You can think of it like:

• 培養土 = potting soil
• を = marks what receives the action
• 使う = use

So the structure is basically:

[object] を [verb]

Why does 使う come at the end?

Because Japanese normally puts the verb at the end of the sentence.

So the basic order here is:

培養土 + を + 使う
object + particle + verb

This is very normal Japanese word order. English usually says use potting soil, but Japanese prefers potting soil use in terms of sentence structure.