Which of these sentences is wrong? i want a large garden, because i like plants. i like plants, i want a large garden. because i like plants, i want a large garden.

Among these sentences, the one which is wrong is the second one - I like plants, I want a large garden.
This sentence is missing a conjunction - phrases such as therefore, this is the reason why, thus, hence, etc., which would provide a logical continuation of the first part of the sentence. Without the conjunction, this sentence sounds weird and not grammatically correct.