Make a melee spell attack against a creature you can reach. On a hit, the target takes 2d10 necrotic damage. the target takes 1d10 necrotic damage at the end of each of it's turns, and until the spell ends, you can use your action on each of your turns to automatically deal 2d10 necrotic damage to the target.

Nonmagical organic materials that aren’t creatures, such as trees and shrubs, wither and die instantly.

At Higher Levels. When you cast this spell using a spell slot of 2nd level or higher, the damage increases by 1d10 for each slot level above 1st.