kanyousyokubutu ni kirihuki wo tukau.

It is pronounced:

かんようしょくぶつ に きりふき を つかう。

Word by word:

• 観葉植物 = かんようしょくぶつ
• に = ni
• 霧吹き = きりふき
• を = o (pronounced like a short o, not wo in normal speech)
• 使う = つかう

A natural breakdown is:

• 観葉植物 = houseplant / foliage plant
• に = for, on, toward, with respect to
• 霧吹き = spray bottle / mister
• を = marks the direct object
• 使う = to use

So the structure is roughly:

[houseplants] + [for/on] + [spray bottle] + [object marker] + [use]

Very literally, it is something like:

Use a spray bottle on houseplants.

Here, に marks the target or thing something is used on/for.

With 使う, Japanese often uses this pattern:

A に B を使う
= use B on/for A

So:

• 観葉植物に霧吹きを使う = use a spray bottle on/for houseplants

This に is not exactly the English to. It is showing the thing that the action is directed toward.

Other examples:

• 掃除にほうきを使う。
  Use a broom for cleaning.
• 髪にオイルを使う。
  Use oil on hair.

Good question. This is because 霧吹き is the thing being directly used, so it is the object of 使う.

• 霧吹きを使う = use a spray bottle

With the verb 使う, the item you use normally takes を.

Compare:

• はさみを使う = use scissors
• パソコンを使う = use a computer

By contrast, で often marks the means/tool used to do another action:

• 霧吹きで水をかける。
  Spray water with a spray bottle.
• ペンで書く。
  Write with a pen.

So:

• 霧吹きを使う focuses on using the spray bottle
• 霧吹きで〜する focuses on doing something by means of the spray bottle

霧吹き（きりふき） usually means a spray bottle or plant mister.

It comes from:

• 霧 = mist
• 吹き = blowing / spraying

So it is literally something like mist-sprayer.

In everyday Japanese, 霧吹き usually refers to the container/tool itself, not just the act of spraying.

Yes, it is understandable and natural enough, especially as a simple example sentence.

That said, in real life, Japanese speakers might also say more specific things depending on what they mean:

• 観葉植物に霧吹きをする。
  Spray/mist the houseplants.
• 観葉植物に水を霧吹きでかける。
  Spray water on the houseplants with a spray bottle.
• 観葉植物に葉水をする。
  Mist the leaves of the houseplants.

So your sentence is fine, but it sounds a little like a basic statement about what tool is used. A more everyday sentence might mention water or the action of misting directly.

Japanese often leaves out the subject when it is obvious from context.

So 観葉植物に霧吹きを使う。 could mean things like:

• I use a spray bottle on houseplants.
• You use a spray bottle on houseplants.
• We use a spray bottle on houseplants.
• Use a spray bottle on houseplants.

The exact subject depends on the situation.

This is very normal in Japanese. If the speaker wants to make the subject clear, they can add it:

• 私は観葉植物に霧吹きを使う。
  I use a spray bottle on houseplants.

使う is the plain non-past form.

In Japanese, the non-past form can mean:

• present/habitual: I use
• future: I will use
• general statement: one uses / use

So this sentence could mean:

• I use a spray bottle on houseplants.
• I will use a spray bottle on the houseplants.
• Use a spray bottle on houseplants.
  depending on context

If you want other forms:

• 使います = polite non-past
• 使った = used
• 使わない = do not use
• 使っている = am using / regularly use, depending on context

It can mean either one or more, depending on context.

Japanese nouns usually do not change form for singular vs. plural the way English nouns do.

So 観葉植物 could mean:

• a houseplant
• houseplants
• the houseplant(s)

The sentence does not tell you by itself.

The same is true for 霧吹き:

• a spray bottle
• the spray bottle

Japanese also usually leaves out articles like a and the.

Usually no, not if you mean use a spray bottle on houseplants.

Why not?

Because で often marks:

• the place where an action happens
• the means by which an action happens

If you say 観葉植物で, it sounds like at the houseplant or using the houseplant, which is not the intended meaning.

To mark the target of use, に is the right particle here:

• 観葉植物に霧吹きを使う = use a spray bottle on/for houseplants

So in this sentence, に is the natural choice.

The polite version is:

観葉植物に霧吹きを使います。

That is the same sentence, just with the polite form 使います instead of plain 使う.

If you wanted a polite request or suggestion, you could also say things like:

• 観葉植物に霧吹きを使ってください。
  Please use a spray bottle on the houseplants.
• 観葉植物には霧吹きを使うといいです。
  It is good to use a spray bottle on houseplants.

The basic grammar stays the same.