Deathweed appears as a short double stalk of corrupted grass with sickly green bulbs at the ends. It grows on Ebonstone or Corrupted grass in The Corruption and on Crimstone in The Crimson. It can be cut by any Weapon or Tool. Deathweed Seeds can also be planted in Clay Pots. Deathweed plants will only have seeds when cut during a Blood Moon or when the Moon is Full as it only blooms when these occur.
- If you create a farm, be sure to use less than 250 Ebonstone Blocks, or else an artificial Corruption biome will form, spawning Corruption enemies such as the Eater of Souls.
- As Deathweed seeds drop only when Blood Moons or Full Moons occur, it is recommended to get some seeds upon the appearance of the first few Blood Moons you encounter, plant them in pots, then harvest the plants every Blood Moon. This will give you enough so that after very few "seed harvesting sessions" you will have a sufficient amount for all of the potions you want to craft.
- One of the Guide's quotes during the Blood Moon is, "Hey, buddy, do you know where any Deathweed is? Oh, no reason; just wondering, is all."
- Added to the game.