What does Friar Laurence have to say about plants at the begging of the scene?

The Friar knows a lot of about plants and flowers for making remedies. He warns Romeo that these flowers/plants can be a blessing and deadly if not used properly. Yes, his statement is true. All people have good and bad in them.

after the moon goes from a full moon it turns into a waning gibbous moon.

here's where my answer came from. i hope this .

i cannot see any of the options