Delthorns Rose Garden

You create a magical zone of Bright Red Roses that sprouts from the ground that silence enemy creatures in a 20-foot-radius centered on yourself. When an enemy creature enters or starts there turn in the spell's area they must make a Charisma saving throw. On a failed save, a creature can't speak while in the spells radius. Friendly creatures who start their turn in the magical rose garden area gain temporary hit points equals to your proficiency bonus + your charisma bonus. 

All enemy creatures that is affected by the spell are unable to cast spells that require verbal components, or communicate at all. But all other noises can be created and sounds from spells are still heard.  As a bonus action you can end the spell early causing the Roses's to release the petals, causing a whirlwind obscuring the area so creature attacking in or through it have disadvantage on attack roles.