As part of the Penn State Lehigh Valley Writing Project, I believe in writing in context with grammar. That being said, I strongly urge each student to have a Writer's Notebook Entry, and within it, they can keep all of their entries associated with any type of writing in class as well as grammar. As their teacher, I also keep a Writer's Notebook of my own that I share on a daily basis with my class.
For this particular notebook entry, students have a page to attach in their Writer's Notebook, which identifies what an adjective it. You guide them through the process of creating sentences, depending on what your curriculum is. For instance, if it is Romeo and Juliet, have them generate adjectives, and then write sentences or paragraphs using the characters.
You can integrate this into ANY PART of your curriculum.
Not only that, this grammar entry can be done in ANY CLASS, not just literature.