Learn Dutch: De lavendel maakt dat wij rustig ademen. - The lavender makes us breathe calmly.

In English, you say something makes someone do an action. In Dutch, to express this kind of situational causation, you use maken dat (to make that) followed by a subordinate clause. You are literally saying 'The lavender makes that we breathe calmly'.

Why is the verb ademen at the very end of the sentence?

The word dat introduces a subordinate clause. In Dutch subordinate clauses, the conjugated verb is pushed to the end. Therefore, after dat, we follow the order of subject (wij), adverb (rustig), and finally the verb (ademen).

Can I use laten here instead, like De lavendel laat ons rustig ademen?

Grammatically yes, but the meaning shifts slightly. The verb laten is often used for causation, but it usually leans towards 'letting' or 'allowing' something to happen. Using maken dat emphasizes that the lavender is the direct, active cause of the situation.

Does rustig change its form when used as an adverb here?

No, it stays exactly the same. Unlike English, which usually adds '-ly' to turn an adjective into an adverb (calm becomes calmly), Dutch uses the basic, uninflected form of the adjective to act as an adverb.