cutting watering) As suggested above I would make the bedding curved so everything doesn't look boxy, how good is the soil does it need to be improved, edging of the area for easier grass cutting. Also you might want to put in screening deep in prior to planting anything so little animals will not make a home underneath the porch (skunks). Evergreens high enough to cover porch foundation, small colorful perineal's for longer color and a few annuals. Then from top of the porch hang a few annual baskets.

owners did it themselves and did not do a good job.