Modular plant stake

Point the longest ends of the ladders downwards.

Depending on the size of your plant, take n ladders (at least 3) and assemble them with 2*n joints (n for the lower part and n for the upper part of the ladders) around your plant to build the 1st level of the support.

Push the lower (longer) ends of your ladders into the soil of your plant.

Depending on the size of your plant, add additional levels by inserting n ladders into the joints of the lower level and assembling these ladders with n joints at their high ends.