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Run off issues?

D C
5 years ago
At the back of this bed is very sharp drop from the lawn into the bed. How do you stop water running along the channel in heavy rains and washing the mulch away? I have a similar bed and every time we have heavy rains the water spills from the lawn into the bed and runs through the channel, taking mulch with it to the lawn below. Frustrating!
Steep hillside with naturalistic garden full of color and texture · More Info

Comment (1)

  • PRO
    Home & Garden Design, Atlanta - Danna Cain, ASLA
    5 years ago

    The trench between bed and lawn was intentional so that runoff would not wash away good garden soil in the planting bed. There's actually large gravel in that trench that you can't see. The mulch is a very thin application for cosmetic purposes and does sometimes wash in very heavy rain. Client did not want to see the gravel thus the thin layer of mulch. The gravel helps the mulch to "stick". The washing of mulch wasn't an issue for client because she had a weekly "gardener" on staff to replace it when needed, which wasn't often. FYI - there's also steel edging about 8" off of the grass that separates the gravel trench from bed as an extra deterrent for the runoff water.


    D C thanked Home & Garden Design, Atlanta - Danna Cain, ASLA