Place a piece of screen or pebbles in the bottom of your pot to stop the soil from seeping out during watering. Now is the time to insert the PVC pipe in the middle and fill the pot with the potting mix up to the first set of holes pushing down the soil around the pipe to keep it in the middle. Then separate your smaller strawberry plants and shake the excess dirt off the roots , trying not to damage the root system. Usually you will find out that there are two or three plants per container. Place the root end through the hole of the first row and and dirt through the top and pat down, being careful to keep the PVC pipe in the middle of the pot. Add more soil through the top till the next row.