Monkey Puzzle Tree care

i have a monkey puzzle tree in a pot its about 4ft tall but the bottom branches are gowing brown, i am going to transplant it into the garden but will the branches recover or do i need to cut them off

 

Any going all brown are a lost cause.

 

Make sure the roots are fully spread out at planting. If it has been in a pot for several years, they'll all be tied up in knots at the bottom of the pot, which isn't good for further growth.