Please choose the correct ending to complete the given sentence: Home and Garden: [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.

Ending1: [title] Collect organic material for your compost pile. [step] There are many different types of materials to make your compost heap, so don't worry about finding the perfect one for your garden. Ending2: [title] Cut a 20 " x 20 " crosspost from the only skinny piece of scrap material (base, bottom, top). [title] Place the post in a corner of the trough. Ending3: 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. Ending4: [title] Cut the trough to the height that you have selected. [step] Adjust the proportions so that there is an equal amount of side cross supports inside and out.

Answer format: ending1/ending2/ending3/ending4