Bedrock Sugar Cane Farm: Automatic Designs
Build an automatic sugar cane farm in Bedrock Edition using observers and pistons, with designs for all scales.
Sugar Cane Growth in Bedrock
Sugar cane in Bedrock Edition grows at the same base rate as Java: it has a random chance to grow each random tick, adding one block at a time up to 3 blocks tall. Growth requires the base block to be adjacent to water (within one block). Sugar cane can be planted on sand, dirt, grass, podzol, and similar blocks.
Unlike Java, Bedrock does not support zero-tick sugar cane farms. All growth happens at natural speed. To maximize production, you need to plant as many sugar cane as possible and harvest efficiently.
Observer-Piston Farm
The most common automatic sugar cane farm in Bedrock uses observers to detect growth and pistons to break the cane:
Single Unit Design
- Place a dirt or sand block with water adjacent to it.
- Plant sugar cane on the dirt/sand.
- Place a piston facing the sugar cane at the second block level (one block above the planted cane).
- Place an observer behind the piston, facing the space where the third sugar cane block will grow.
- The observer detects when the sugar cane grows to the third block and activates the piston.
- The piston pushes and breaks the top blocks of sugar cane.
- A water stream below collects the dropped items and funnels them to a hopper.
Collection System
Place a water stream below the farm that flows toward a central collection point. Use hoppers connected to a chest at the end of the stream to automatically store the harvested sugar cane. Make sure the water does not flow into the sugar cane growing area, as this would break the planted cane.
Scaling Up
The single unit can be tiled to create larger farms:
- Row design: Place sugar cane in a long row with water channels on each side. Line the row with pistons and observers. This is space-efficient and easy to build.
- Grid design: Create a grid of sugar cane with alternating water and growing columns. Each column has its own piston and observer. This maximizes density.
- Multi-layer: Stack multiple rows vertically, each with its own observer and piston system. Water streams at each level feed into a central shaft.
Observer Placement
In Bedrock, observers detect block updates on the face they are watching. For sugar cane:
- Place the observer so its detecting face (the one that looks like a face) points at where the sugar cane will grow.
- The output (the redstone dot) should face the piston or connect to it via redstone dust.
- In Bedrock, observers may pulse differently than Java. Test your design to ensure the piston activates and retracts properly.
Bone Meal Variant
In Bedrock Edition, sugar cane can be grown with bone meal (unlike Java where bone meal has no effect on sugar cane). You can create a bone meal-powered farm:
- Point a dispenser at the sugar cane base block.
- Fill the dispenser with bone meal.
- Use a clock circuit (like a comparator clock) to fire the dispenser repeatedly.
- The observer detects growth and activates the piston to harvest.
This produces sugar cane much faster than natural growth but requires a steady supply of bone meal. Connecting to a skeleton farm for bone meal makes this very efficient.
Build Tips
- Use sand blocks for planting. They are easy to distinguish from other blocks and work just as well as dirt.
- Ensure the water source is within one block of the sugar cane. Diagonal water does not count.
- Light the area well to prevent mob spawning on the farm platforms.
- If using a ticking area, the farm runs even when you are not nearby.
- In Bedrock, random tick speed can be changed with
/gamerule randomtickspeed(default is 1, Java default is 3). Higher values increase growth rate.
Expected Rates
A 20-unit observer farm produces roughly 60-120 sugar cane per hour at default tick speed. With bone meal, rates can be many times higher depending on the bone meal supply and dispensing speed.
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