Game mechanic
Cactus Growth
Cactus grows one block taller after 16 random ticks, up to 3 blocks high, and can grow a Cactus Flower on top.
Rules
| Growth timing | Cactus grows on random ticks: at random moments, on average once every 68.27 seconds per block at the default random tick speed of 3. The top block needs 16 of them to add a new Cactus block above. |
| Average time | 16 random ticks take about 18 minutes (1,092 seconds) on average. |
| Height limit | Cactus grows by itself until the column is 3 blocks tall. A taller column built by hand does not grow further. |
| Space above | The block above the top Cactus must be air. Otherwise nothing grows and no flower appears. |
| Cactus Flower | At growth stage 8 of 15, a Cactus Flower can appear on top: 10% chance on columns 1-2 blocks tall, 25% on columns 3 or more blocks tall. The spot on top must have no solid block or lava beside it. |
| Flower on top | A Cactus with a Cactus Flower on it does not grow taller, because the space above is no longer air. |
| Planted on | Sand, Red Sand, Suspicious Sand or another Cactus. |
| Breaks when | Cactus breaks and drops as an item when a solid block or lava is beside it, or when a liquid is directly above it. |
