Blight

D&D 2024 spell: Blight. Source: Player's Handbook (2024). level 4, school Necromancy, casting time 1 action, range 30 feet, duration Instantaneous

A creature that you can see within range makes a Constitution saving throw, taking 8d8 Necrotic damage on a failed save or half as much damage on a successful one. A Plant creature automatically fails the save. Alternatively, target a nonmagical plant that isn't a creature, such as a tree or shrub. It doesn't make a save; it simply withers and dies.

At Higher Levels

Using a Higher-Level Spell Slot The damage increases by 8d8 for each spell slot level above 4.

Source: Player's Handbook (2024), p. 247 - Licenses and attribution