Start with the sprinkler you own
Basic Sprinklers water four adjacent tiles, Quality Sprinklers cover the surrounding 3 × 3 ring, and Iridium Sprinklers cover the surrounding 5 × 5 ring. The selector keeps the range visible while you plan.
Stardew Valley greenhouse planner · sprinkler layout
Can every crop tile
get watered?
Place Sprinklers on the 10 × 12 Greenhouse grid. See plantable tiles, dry spots, coverage, and a practical layout you can adjust by hand.
Plan my Greenhouse ↓No loginGreenhouse onlyAuto-saved
Greenhouse sprinkler planner
Can every crop tile get watered?
Pick a sprinkler, then click the 10 × 12 greenhouse grid. The planner counts plantable, watered, and dry tiles without sending your layout anywhere.
Click a tile to place or remove the selected sprinkler.
GREENHOUSE FLOOR · 120 TILLABLE TILESQuality Sprinkler
4 / 4 Watered Dry✦ Sprinkler
Sprinkler4 tiles4 adjacent tilesQuality Sprinkler8 tiles3 × 3, minus the centerIridium Sprinkler24 tiles5 × 5, minus the center
The suggestion uses a deterministic coverage search for this greenhouse grid; it is a starting layout, not a claim that every farm map has one perfect pattern. Sprinkler tiles are not counted as crop spots. Paths, Junimo Chests, and fruit trees are outside this first version.
Loading the layout saved on this device… Use the crop profit calculator when you want to compare what to plant in the open tiles.
Greenhouse layout decisions
Place the sprinkler first, then spend every remaining tile on crops
The Greenhouse has a fixed 10 × 12 tillable area. This planner turns sprinkler range into a visible grid so you can spot dry corners, count lost crop tiles, and leave room for the paths or trees you actually want.
A Pressure Nozzle changes the footprint
Toggle Pressure Nozzle when you are planning with the 1.6 upgrade. The grid recalculates the expanded reach instead of leaving you to count tiles by eye.
Use the suggestion as a starting point
The automatic layout searches the small Greenhouse grid for high coverage, then leaves every tile editable. Move a sprinkler to make room for paths, a Junimo Chest, or a preferred crop pattern.
Greenhouse only · unmodded Stardew Valley 1.6.x · 10 × 12 tillable tiles · sprinkler coverage and Pressure Nozzle range are modeled · paths, crops, trees, and farm maps are not placed yet · all entries stay in this browser.
How the plan is made
A good Greenhouse layout keeps every plantable tile watered.
Count the plantable tiles
The Greenhouse starts with 120 tillable tiles. Each sprinkler occupies one tile, leaving the rest as crop spots.
Union every sprinkler footprint
Coverage counts each in-bounds crop tile once, even when two sprinklers overlap. Overlap hits remain visible so you can refine a crowded layout.
Show the dry remainder
Any plantable tile outside every footprint is marked dry. Add or move a sprinkler until the result matches the layout you want to play.
Reference this tool
Give readers the exact calculator.
Writing a guide, tool list, video description, or forum answer? Link to this page so another player can reproduce the calculation.
ValleyMath. “Stardew Valley Greenhouse Sprinkler Planner — Layout & Coverage” Data model: Stardew Valley 1.6.x. Page updated August 27, 2026. https://valleymath.com/stardew/greenhouse-sprinkler-planner
The clean reference never includes your inventory or private share-link data.
Common questions
Before you load the shed
How many tiles are in the Stardew Valley Greenhouse?
The Greenhouse has a 10 × 12 tillable area, so there are 120 crop tiles before sprinklers or other placed objects take up space.
How many tiles does a Quality Sprinkler water?
A Quality Sprinkler waters the eight tiles around it in a 3 × 3 ring. Its own tile is occupied by the sprinkler and is not a crop spot.
How many tiles does an Iridium Sprinkler water?
An Iridium Sprinkler waters the 24 surrounding tiles in a 5 × 5 ring. Tiles outside the Greenhouse or occupied by another object do not become crop spots.
What does a Pressure Nozzle do?
A Pressure Nozzle expands the sprinkler footprint by one tile on each side. The planner recalculates the in-bounds coverage for the selected sprinkler type.
Is the suggested layout mathematically perfect?
It is a deterministic high-coverage starting layout for the fixed 10 × 12 grid, not a proof of a global optimum for every path, tree, or building preference. Every tile remains editable.
Does this planner place crops and fruit trees?
Not yet. It focuses on sprinkler coverage and keeps crop, path, Junimo Chest, and fruit-tree placement visible as future layout decisions instead of pretending they are already optimized.