Remember that solid stone troughs will be very heavy, especially once full of soil and rocks. [substeps] Try to get a trough planter with drainage holes, or, if possible, drill drainage holes in whatever planter you are using.
[header] How to make a rock garden in a trough [title] Pick out the material you would like your trough to be. [step] You can buy a stone, metal or wood trough from the garden store; these tend to be fairly expensive. You can also use an old butler's sink or metal tub from the reclamation yard.