The Last Tree

Once upon a time in a galaxy unknown there lived a peaceful and advanced species that lived a beautiful life. 
Don't worry the species still exist but the youngest son of the leaders family (we call him the "Tin Can") idiotically crashed his ship on an unknown planet.
The life source which powers the ship among everything else on the planet including the species themselves are a crystalized fruit (aka crystals) that grows on their sacred trees.
Tin Can had run out of the crystals but he still had the plant on thehip which if it grows can give him the crystals he needs. So his only mission now is to " Keep it alive" so that he can repair the ship and fly away!!
Tasks:
⦁ Find water source and purify it
⦁ Find metal to craft a fencing to keep animals away from the plant
⦁ Find sand to craft a glass casing to prevent in from the unstable environment of the planet.

That's it! Now go do your bit an keep the damn plant alive!!