Plants for Creating the DownspoutGardenPlan. The mix of plant sizes and the soft pinks and blues of the flowers of the following perennials work together to create a dynamic design with... This garden is up to the high-moisture challenge of the area around a downspout. Plant list. B 2 pink. A downspout planter box acts like a small rain garden and makes the area around a downspout more attractive. Click here for planter ideas. Plants for Creating the DownspoutGardenPlan. 1 Joe-Pye weed (Eutrochium purpureum): Zones 4-8. Think of your downspoutgarden as a miniature rain garden. Most rain gardens are started by creating a depression in your yard or by using a natural low spot to collect rainwater. Get the Free DownspoutGardenPlan#. The gardenplan for this design includes an illustrated version of the planted garden, a detailed layout diagram... This DownspoutGardenPlan Uses Lots of Rain to Your Advantage.Downspout | Rain garden, Garden projects, Outdoor gardens. Rain GardenDownspout. Raingardens Plan. Planting Plans. Prairie Flora GardenPlan. Butterfly Garden Plants Combination Diagram. Historical Garden Layout Map. Attach the gutters to a fence or wall with screws. Drill holes for wire as well as drainage holes if you’re planning a hanging garden.Plants for Creating the DownspoutGardenPlan.