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Once Human Gardener Guide: Grafting Crops and Biomechanical Parts

Other Games·August 12, 2025·11 min read

Gardener is one of the three classes added in Once Human Version 2.0. It is the class for Meta-Humans who want farming to do more than fill storage boxes with crops.

Instead of simple planting, Gardener combines cultivation with biotech. You can improve growing conditions, graft crops, and attach biomechanical parts to create plants with unusual effects.

Gardener Class Basics in Once Human

Gardener starts with two unique items: the Portable Planter Box and the Environmental Detector. The Portable Planter Box lets you grow plants outside your territory, while the Environmental Detector helps monitor planting conditions such as soil quality.

The class also has the Greenhouse Technology talent. This lets you use the Greenhouse Module to adjust environmental conditions inside your territory garden, which makes crop management more controlled.

The main class feature is HP Sewing, also called Life Sewing. This skill lets you graft crops with other crops or with mechanical parts. Successful grafting can create hybrid plants with extra effects or plants that perform special functions. Gardening, apparently, needed a mad science department.

How to Graft Crops

Grafting only works on plants grown in Loamy Soil or a Planter Box. Plants in planter pots do not offer the grafting option.

Wait until the plant fully matures, then approach it and choose Graft. Some plants cannot be grafted, including Peppercorn and fruits.

After opening the grafting window, select a second crop, known as the scion, or choose a biomechanical part to attach to the base plant. Grafting is not guaranteed, so check the Grafting Success Rate before confirming. If the odds look rough, use a catalyst to improve the chance and avoid wasting materials.

Biomechanical Parts and Effects

Gardeners can use biomechanical parts taken from defeated elite Deviants. These drops are not guaranteed, so expect to farm some enemies multiple times before getting the exact part you want.

As of Update 2.0, these biomechanical parts can be grafted for the following effects:

  • Agent: Acts as a turret and shoots orbs at opponents that deal fixed 130 damage.
  • Balloon: A balloon that acts like a target practice dummy.
  • Bulb: Adds additional light to the immediate area.
  • Digger: Functions like the Mining Platform, allowing players to farm ores automatically.
  • Lamp: Functions similarly to the Bulb, but also adds warmth to the immediate area.
  • Morphic: Generates seed, crop, and a deviated version of the grafted crop.
  • Rainfall Reaper: Generates a 3% elemental damage buff to all nearby players.
  • Scorcher: Functions like a Furnace, allowing players to smelt ores, but only has a maximum crafting queue of 3 items.
  • Watcher: Freezes nearby enemies, but requires opponents to be within earshot.

Best Biomechanical Parts for Gardener

The best biomechanical part depends on what your base needs, but a few stand above the rest.

Morphic is one of the strongest options for most Gardeners. Once grafted, it produces seeds, crops, and deviated versions of the grafted crop, turning the plant into a useful farming engine.

Digger is another excellent choice because it works like a miniature Mining Platform. If you constantly need ores for crafting supplies such as bullets, this part helps reduce the manual grind.

Rainfall Reaper is valuable for combat-focused players. Its 3% elemental damage buff is modest, but any extra DPS helps builds using Blaze, Frost, Shock, or Blast effects.

Farm the part that supports your current bottleneck first. A defensive garden, a crop engine, and an ore setup all solve different problems.

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