Hay

Hay is a type of block that is harvested from wild grass plants and sea oats by using a Sickle. It can be used to make Target Dummies.

Crafting

Result	Ingredients	Crafting station
Hay	Hay Wall4	Work Bench

Result	Ingredients	Crafting station
Target Dummy(Desktop, Console and Mobile versions)	Any Wood20 Hay50	Sawmill
Hay Wall4	Hay	Work Bench

This content is transcluded from Sickle.

Vegetation yielding 1–2 Hay

Short pure grass plants (tile ID 3)

Short Corrupt grass plants (tile ID 24)

Short Crimson grass plants (tile ID 201)

Short Jungle grass plants (tile ID 61)

Short Hallowed grass plants (tile ID 110)

Short Ash grass plants (tile ID 637)

Mushroom, Vile/Vicious Mushroom, Jungle Spores, Nature's Gift

Sea oats (tile ID 529)

Vegetation yielding 2–4 Hay

Tall pure grass plants (tile ID 73)

Tall Jungle grass plants (tile ID 74)

Tall Hallowed grass plants (tile ID 113)

Each tile of short grass plants of any type always yields 1–2 Hay when cut, as do Mushrooms, Vile/Vicious Mushrooms, Jungle Spores, Nature's Gifts, and sea oats. Each tile of tall grass plants of any type always yields 2–4 Hay when cut.^[1]
Only the Sickle purchased from the Merchant can be used to harvest Hay. The Ice Sickle and Death Sickle do not work.

Since it is so fast and easy to obtain, it makes for an excellent building block for large-scale projects, e.g. a skybridge. It is also immune to biome spread (i.e., Hallow/Corruption/Crimson).
Using the Flower Boots, the player can repeatedly swing a Sickle for very large amounts of Hay.