Upper part of Pitcher Crop can be only spotted at age 3 or 4. Ages 0-2 are accessible only with the use of commands, debug stick, debug world etc.

All 3 debug variants can be walked through with no problems. Issue arrives when you try to look at the block coordinates occupied by said variants:
  while age 2 causes no problems; age 0 and 1, when you try to focus the cursor on the occupied space, be it directly at the plant, or at a block behind/below/above it, will cause the game to crash.

This locks the world until you somehow change player's focus from said coordinate, remove the crop with age 0/1 with external editor or downgrade your world to version before the crop was added.

So far I got 2 versions of the error:

The game crashed whilst unexpected error
Error: java.lang.ArrayIndexOutOfBoundsException: Index 3 out of bounds for length 2

and 

The game crashed whilst unexpected error
Error: java.lang.ArrayIndexOutOfBoundsException: Index 2 out of bounds for length 2