Before you redesign an outdoor bed, make sure you know these three things: 1) Sun exposure (Including time-of-day), 2) Heat exposure, 3) Water restrictions. Also take note of the soil; how long has it been there; is there a mix of soil, etc. And lastly, know what you are looking for ascetically. If you are unfamiliar with flowers and plants, go to a nursery with this information and they will point you in the right direction.
Step 1: Clean out bed of weeds and large rocks. Add additional soil or compost if needed.
Step 2: Position plants in bed where you would like them to sit. Tip: Push the containers in the soil and bit to make an outline for where to dig.
Step 3. Get to planting; the depth should be the same as they have in their current container. Tip: I left the plants and flowers in their container while we dug each hole to allow us to easily test the depth. After the plants are in the ground or pot, make sure to push the base of the plant down, and then water very good.
Its been three weeks since we planted these guys and they are kicking along great! Remember that it will take a little time for them to pep up after you plant them; the repotting process tends to shock their system.
It's been crazy how much this small update has changed the back yard. We didn't realize how much that bed was an eye sore until it was fixed!