your thoughts are the seeds."
So are you growing flowers? Or weeds?
I recently taught a class on the Noble Eightfold Path. One of the first investigations we did was to divide our thoughts into wholesome and unwholesome. Do this for 3 minutes during your next meditation.
Once you become aware of the unwholesome, the unskillful, the "weeds," you can apply the antidotes.
Loving-kindness and patience antidote just about everything.
You can practice loving-kindness during meditation or on a walk or while you are driving or while you are washing the dishes. You can grow flowers in your mind all day every day.