Choking Pollen

You draw the pollen from nearby plants to create a thick, swirling cloud in a 5-foot-diameter sphere. Any creatures in the affected area must succeed on a Constitution saving throw or take 3d6 poison damage and have disadvantage on the next saving throw it makes before the end of your next turn.

At Higher Levels: When you cast this spell using a spell slot of 3rd level or higher, the diameter of the sphere increase by 5 feet and the damage increases by 2d6 for every two slot levels above 1st.